Muscle hypertrophy is a confusing subject.
Hell, it’s a confusing word. How do you even say it?
And what does it mean, exactly?
(It’s the technical term for muscle growth.)
Some people say that the best way to stimulate muscle hypertrophy is to use different rep ranges to develop different kinds of muscle fibers.
Some say that there are different kinds of muscle hypertrophy—”myofibrillar” and “sarcoplasmic”—and if you aren’t emphasizing both in your training then you’re leaving gains on the table.
If you want bigger muscles, you’re told, you want to maximize sarcoplasmic hypertrophy, and you do that by training with light weights and high reps, supersets, and so forth.
And if you want stronger muscles, you want to maximize myofibrillar hypertrophy, and you do that by training with heavy weights and low reps.
Then, others say that muscle hypertrophy is almost entirely genetic. They say your DNA determines whether you can build a lot of muscle or not, and how you train isn’t going to make much of a difference one way or another.
Then, of course, almost everyone says that cardio is horrible for muscle hypertrophy.
And there you are in the middle of all of this, feeling like …
… and I understand. I was in your shoes at one point, too.
When I started working out, I was your average tall, skinny dude, and for the first one and a half years, I followed run-of-the-mill bodybuilding magazine workouts.
It kinda worked. By the end of this period I was, uh, a little less skinny? (I won’t even Photoshop the zit out):
Fast forward about five and a half years, and while I had gained a fair amount of muscle along the way, it wasn’t exactly what I would have expected for seven years of dedicated weightlifting:
Soon after that picture was taken, though, I decided to educate myself on the real science of muscle and strength gain and implement what I had learned, and here’s where it got me:
And in this article, I’m going to share with you the key lessons I’ve learned so you can follow in my footsteps.
Let’s get to it.
Muscle hypertrophy is the technical term for an increase in muscle size.
Hyper means “over or more,” and trophy means “growth,” so muscle hypertrophy literally means the growth of muscle cells.
To understand what causes muscle hypertrophy and how it works, you first need to understand what muscles are comprised of.
Muscle tissue is a complex structure, with bundles of long strands of muscle cells sheathed in a thick band of connective tissue known as the perimysium.
Here’s how it looks:
The three main components of muscle tissue are:
To cause muscle hypertrophy, you need to increase the amount of water, glycogen, or protein in a muscle cell.
Simple enough so far, right?
When people say “muscle hypertrophy,” they’re generally referring to an increase in the amount of protein in the muscle.
This is known as myofibrillar hypertrophy, which refers to an increase in the amount of protein contained in individual muscle cells.
It’s called “myofibrillar” hypertrophy because myo means “muscle,” and a fibril is a threadlike cellular structure.
There’s another kind of hypertrophy, though, known as sarcoplasmic hypertrophy.
Sarco means “flesh” and plasmic refers to plasma, which is a gel-like material in a cell containing various important particles for life.
Sarcoplasmic hypertrophy, then, is an increase in the volume of the fluid and non-contractile components of the muscle (glycogen, water, minerals, etc.).
Here’s a simple visual of how it works:
It’s obvious that the sarcoplasmic elements of muscle cells (necessarily) expand as myofibrillar growth occurs, and that you can temporarily increase sarcoplasmic volume by doing things like getting a pump or loading creatine or carbs.
What isn’t so obvious, though, is this:
That is, is there more to sarcoplasmic hypertrophy than a temporary “pump”? Can it contribute significantly to total muscle size and gain over time?
Some people say the answer is obviously yes.
“How can a 170-pound powerlifter out-squat a 250-pound bodybuilder?” they ask.
Sarcoplasmic hypertrophy would seem to answer this question. The bodybuilder, in his quest to build the biggest muscles possible, has (apparently) developed muscles with more sarcoplasm, but less contractile protein than the powerlifter.
There’s a more likely explanation, though:
Thus, powerlifters are probably just better at those key exercises than bodybuilders, who perform them much less frequently. This is why you can find many examples of bodybuilders that switch to powerlifting and gain strength very quickly, as they improve their technique.
That said, it actually does appear that sarcoplasmic hypertrophy is indeed more than merely a side effect of working out.
The reason why revolves around something known as “cellular swelling.”
Every time a muscle contracts, metabolic byproducts like lactic acid build up in and around the cells. Your body then pumps more blood into your muscles to carry these compounds away, which makes your muscle cells swell.
These compounds also pull water into the muscle cells, making them swell even larger, and this reduces the amount of blood that’s able to escape, causing still more swelling.
We experience cellular swelling as a pump, of course, and there’s strong evidence that this increases protein synthesis, which is is the creation of new muscle proteins and the process that drives myofibrillar hypertrophy.
In other words, while sarcoplasmic hypertrophy in and of itself doesn’t contribute to overall muscle size as directly as myofibrillar hypertrophy, it does seem to stimulate more myofibrillar hypertrophy, thereby helping you get jacked faster.
This is why it’s a good idea for intermediate and advanced weightlifters to include some higher-rep work in their workout routines, which maximizes sarcoplasmic hypertrophy.
In my opinion, beginners don’t need to worry about “periodizing” their training like this. If they just spend their first couple of years focusing on increasing whole-body strength with a lot of heavy, compound weightlifting, they’ll gain more or less all the muscle they possibly can in that period.
Some people like to point to the differences in muscle size and strength between bodybuilders and strength athletes as evidence of sarcoplasmic hypertrophy.
Use this workout and flexible dieting program to lose up to 10 pounds of fat and build muscle in just 30 days…without starving yourself or living in the gym.
Another idea that’s been kicking around the bodybuilding space for years now is muscle hyperplasia.
This is a technical term that means the formation of new muscle cells (plasia means “the development of cells”), and there’s an ongoing debate as to whether it’s actually possible or not.
Some say that both muscle hypertrophy and hyperplasia contribute to overall muscle growth, whereas others say that muscle hyperplasia doesn’t occur at all in humans, and any increase in muscle size is solely due to the two types of muscle hypertrophy we’ve already discussed.
If you flip open a physiology textbook, you’ll read that there’s nothing we can do to increase or decrease the number of muscle cells in our bodies—that we can only grow or shrink their size.
And by and large, most studies show that’s the case.
That said, though, most of these studies were conducted on sedentary people, and there’s some evidence that we may be able to add new muscle cells with enough years of hard training.
The first line of evidence comes from animal research, which found that hyperplasia can occur if you use a sufficiently brutal training protocol.
For example, scientists from the University of Texas found that they could cause a 24% increase in muscle size due to hyperplasia when they attached a weight to a bird’s wing for 30 days.
Although it’s not practical, other research has shown that you can cause hyperplasia in rats by cutting them open and partially destroying the muscles.
The second line of evidence is more convincing.
A few studies have shown that bodybuilders have more total muscle cells than their nonlifting counterparts, which has led some to conclude that their years of hard training must have caused muscle hyperplasia.
There are three problems with these studies, though:
1. We have no idea how many muscle cells everyone had before the study.
It’s possible that the bodybuilders in these studies were just born with more muscle cells than the sedentary people.
2. The studies didn’t directly measure or demonstrate muscle hyperplasia.
Instead, they just found a correlation between bigger muscles and more muscle cells. Muscle hyperplasia may or may not have caused this to occur.
This would indicate that most bodybuilders have bigger muscles through growing their existing muscle cells, not adding new ones.
One possible way to induce muscle hyperplasia in humans is steroids.
For example, in a study conducted by a team of researchers from Umeå University, muscle samples were taken from two groups of powerlifters:
After analyzing the muscle tissues, researchers found that the steroid users had significantly more muscle cells than the natties, so it’s possible that #dedication is a good way to cause muscle hyperplasia.
This might also help explain why people who’ve used steroids tend to keep at least some of their chemically enhanced gains years after they stop taking drugs.
There are several factors that affect how much and how quickly you can stimulate muscle hypertrophy.
This also leads to a lot of confusion as to the “best” way of going about it.
Some people say you just need to stick to the basics—heavy weights, progressive overload, moderate volume, etc.—whereas others believe you should make things much more complex.
For example, you’ve probably heard that you should …
And some people say none of any of the above matters as much as your DNA—that most of your progress (or lack thereof) will come down to your genetics.
Let’s unpack this and see what the current weight of the scientific evidence says.
A muscle fiber is a muscle cell (the terms are interchangeable), and not all are the same.
Some muscle fibers are better suited for endurance activities and others are more suited for strength and power.
The former are referred to as type I muscle fibers, and the latter as type II.
Type I fibers are also known as “slow-twitch” muscle fibers, and they’re dense with capillaries, rich in mitochondria and myoglobin, and very efficient at absorbing oxygen from the blood, which makes them very resistant to fatigue.
This is why they can contract repeatedly for long periods of time.
They also, however, have about half the potential for growth and power output as type II muscle fibers.
Type II fibers are also known as “fast-twitch” muscle fibers, and their structure and physiology make them better suited for generating strength and power.
Because of these differences, bodybuilders have claimed for years that you can (and even should) selectively target these fiber types with different styles of training techniques.
The most common one talked about is using higher reps and lower weights to maximally stimulate the type I muscle fibers, and using higher weight and lower reps to activate the type ll fibers. This way, you can gain muscle as quickly as possible.
The theory behind this approach may sound reasonable, but when you look beneath the hood, it starts to get messy.
First of all, the idea that different kinds of strength training preferentially stimulate different muscle fibers isn’t true.
That is, as long as you finish your sets relatively close to failure, both heavy and light weights can stimulate both type I and type II muscle fibers equally well.
Dr. Brad Schoenfeld made this clear in one of the most comprehensive reviews on muscle growth to date, published in 2010 in The Journal of Strength and Conditioning Research. “… a fiber-type prescription with respect to repetition range has not been borne out by research,” he concluded.
Second, not all muscle fibers fit neatly into these “type I” and “type ll” classifications.
A large proportion of our muscle fibers share properties of both type I and type ll cells, and these “hybrid” fibers can adapt well to both strength and endurance activities.
This makes it more or less impossible to only target your type I or type ll muscle fibers with different kinds of training or rep ranges.
The last problem with this idea of “targeted muscle fiber type training” is that most of the muscles in your body have a roughly even mix of type I, type ll, and hybrid muscle fibers. The calves are a notable exception, which tend to be about 60 to 90% type l muscle fiber, but most muscles have around 50% type I and type II muscle fibers.
What this means, then, is even if you could target type I or II muscle fibers with different rep ranges, you’d still want to use both high and low reps on all major muscle groups to emphasize both fiber types.
You may have also heard that through certain types of training techniques, you can transform some of your low-growth type I muscle fibers into high-growth type II fibers.
Science shows that’s basically impossible.
Your “pure” type l and type ll muscle fibers, however, don’t seem to change at all regardless of how you train them or how long.
An instructive example of this comes from a study conducted by a team of researchers at The University of Memphis, which looked at the muscle fiber type of high-level powerlifters and people who had never lifted weights.
And when I say “high-level,” I mean it—the average bench press in the group was almost 400 pounds, and their average squat and deadlift were both over 600 pounds.
Both the powerlifters and the untrained people had the same proportion of type l and type ll muscle fibers.
In other words, it looked like their years of heavy lifting hadn’t resulted in more type II muscle fiber.
The practical takeaway, then, is this:
So long as you’re using relatively heavy weights, training in the rep range of about 4 to 12 reps, and pushing yourself to 1 to 2 reps shy of failure in most of your sets, you’re going to experience plenty of type I and II muscle fiber growth.
To understand how strength training affects muscle hypertrophy, you need to understand the three primary “triggers” for muscle growth:
Progressive tension overload (or just “progressive overload”) is the most important of the three.
This refers to progressively increasing tension levels in the muscle fibers, and the most effective way to do this is to add weight to the bar over time.
Muscle damage refers to just that—microscopic damage caused to the muscle fibers by high levels of tension. This damage requires repair, and if the body is provided with proper nutrition and rest, it will make the muscle fibers larger and stronger to better deal with future bouts of training.
(It’s still not entirely clear if muscle damage directly stimulates muscle growth, or if it’s just a side effect of progressive tension overload, but as of right now, it should be on the list.)
These three “pathways” to muscle growth also relate to what scientists call the “strength-endurance continuum,” which works like this:
Given what you just learned, which style of training do you think generally results in more muscle gain?
That’s right—heavy, lower-rep work, because it allows for more progressive overload and creates more muscle damage than lighter, lower-rep work.
For example, in a study conducted at the University of Central Florida, scientists separated 33 physically active, resistance-trained men into two groups:
Both groups did the same exercises (which included the bench press, back squat, deadlift, and seated shoulder press), and both were instructed to maintain their normal eating habits and keep food diaries.
And the result?
After eight weeks of training, scientists found that the high-intensity group gained significantly more muscle and strength than the high-volume group.
Researchers cite two main reasons for why the heavier training beat out the lighter in not only strength gain (not surprising), but muscle gain as well:
1. Higher amounts of mechanical stress imposed on the muscles.
The high-volume training, on the other hand, caused higher amounts of metabolic stress.
2. Greater activation of muscle fibers.
And this, in turn, results in greater muscle hypertrophy across a larger percentage of the muscle tissue.
In other words, the more weight you can push, pull, and squat, the more muscular you’re generally going to be.
You probably know that you need to eat enough protein to build muscle effectively.
Specifically, 0.8 to 1 gram of protein per pound of body weight per day works well for most people and circumstances.
What you may not know, though, is that you need to eat enough calories as well.
Technically speaking, a calorie is “the amount of energy required to heat 1 kg of water 1 degree Celsius at one atmosphere of pressure,” and the relationship between the amount of calories you eat and burn is known as energy balance.
Energy balance greatly impacts both your body weight and composition.
For example, if you feed your body less energy than it burns, you’ve created an energy (or calorie) deficit that will result in weight loss if sustained for a period of time.
It will also impair your body’s ability to create muscle proteins, however, which slows down (or even halts) muscle growth.
The physiology in play is fairly complex, but the long story short is when you restrict your body’s energy intake, it shifts to an “energy conservation” mode wherein certain bodily functions are given priority over others.
Building bigger muscles isn’t vital for survival and requires quite a bit of energy, so it’s rather low on the list.
All this is why it’s commonly believed that you can’t build muscle and lose fat at the same time.
That’s not entirely accurate—if you’re new to proper strength training and dieting or coming back to the gym after a layoff, you can achieve the holy grail of fitness: “body recomposition.”
What is true, though, is that you’ll never gain as much muscle in a calorie deficit as you would when you’re in a calorie surplus. And if you’re an intermediate or advanced weightlifter, you probably can’t gain any muscle to speak of while dieting.
So, when we want to build muscle as quickly as possible, what do we have to ensure regarding our calorie intake?
You got it—we have to ensure we’re not in a calorie deficit, and this is true regardless of our dietary protocol.
Regardless of what type of diet we follow—low-carb, intermittent fasting, carb cycling, flexible dieting, veganism, or whatever else—if we’re in a calorie deficit more often than not, we’re going to struggle to gain muscle and strength.
On the other hand, if we ensure we’re in a slight calorie surplus more often than not, we’re going have a much easier time of it.
For many people, “genetics” is an unpalatable word.
It’s often associated with things you want to change but can’t, and the bad news is muscle hypertrophy is one of those things.
We all have hard limits as to how much muscle we can gain.
That said, unless you want to be a top-tier bodybuilder or fitness competitor, you can gain more than enough muscle to look and perform the way that you want.
Just how much muscle can you gain, you’re wondering?
Well, there are many physiological variables in play here, but you can get a fairly accurate estimate of your muscle-building potential by analyzing your bone structure.
Research shows that people with larger bones tend to be more muscular than people with smaller frames. Furthermore, they also tend to have higher testosterone levels and gain muscle faster when they start lifting weights.
What this means, then, is “big-boned” people have more genetic potential for strength and size than smaller-boned folk.
What qualifies as “big boned,” though, and how do you measure up?
Well, two of the best indicators of your overall bone structure are the circumferences of your wrists and ankles. Height being equal, people who have wider wrists and ankles tend to be naturally more muscular and have a higher potential for muscle growth than those with narrower ones.
If you’re like me and you don’t even need to measure anything to know you have slender bones, take heart.
Everyone can gain a significant amount of muscle if they eat and train correctly, and you don’t have to gain as much as you might think to have a body you can be proud of.
If you’d like learn more about how much muscle you can build naturally, check out this article:
Spend enough time in the fitness racket and you’re going to hear this at some point:
If you want to be small, weak, and frail, then do more cardio.
There’s truth here—cardio does indeed interfere with muscle hypertrophy—but it’s not that cut-and-dried.
Cardio can interfere with muscle hypertrophy in two ways:
A good illustration of the first point is found in a study conducted by scientists at the University of São Paulo.
To see how doing cardio before heavy strength training affected muscle growth, the researchers split 10 men into 3 groups:
After each workout, the researchers tallied up the total number of reps and volume (weight x reps x sets), and compared the numbers.
As you might expect, the first group (no cardio) performed significantly more total reps and volume than other two groups.
While this study didn’t measure muscle growth, due to many of the reasons we’ve discussed in this article, it’s very likely that the first group would also gain significantly more muscle and strength if this experiment were played out over a longer period of time.
As to the second point—the disruption of cell signaling—working out produces a cascade of cellular, genetic, and hormonal changes to repair the damaged muscle fibers and make your muscles bigger, stronger, and better able to deal with future bouts of training (tension).
Cardio, though, triggers a very different set of cellular adaptations that cause muscle cells to become smaller and more resistant to fatigue instead of larger and stronger.
The exact mechanisms in play here are beyond the scope of this article, but the long story short is this:
Doing too much cardio suppresses the normal levels of anabolic signals triggered by resistance training, which reduces muscle and strength gains over time.
In other words, the more cardio you do, the harder it becomes to get big and strong. Furthermore, the longer your cardio sessions are, the more pronounced this “interference effect” is in each session.
It would be wrong to say that cardio has no place in your workout plan, though.
First of all, cardio provides some health benefits that you probably can’t get with strength training alone.
Second, there’s some evidence that doing some regular cardiovascular exercise could help you recover faster between sets of your weightlifting workouts, which you could turn into more work done per workout.
The good news is that research shows you can minimize or even eliminate the negative effects of cardio on muscle hypertrophy by …
Stick to that plan and you should have no trouble building muscle while including cardio in your workout routine.
While muscle hypertrophy is tremendously complex and scientists are still investigating its many nooks and crannies (and will be for a long time), we do know enough to say this:
If you do the following five things, you can gain plenty of muscle and strength:
Let’s go over each step in turn.
There are many ways to train your muscles, and when the goal is gaining size and strength as quickly as possible, but nothing beats heavy compound weightlifting.
What do I mean by “heavy compound” lifting, though?
By “heavy,” I mean that you should work primarily with weights in the range of 75 to 85% of your one-rep max (1RM), which includes weights that you can do 6 to 10 reps with before failing.
There are a lot of strength training programs that check off these boxes, but I recommend you start with a proven classic like the push pull legs (PPL) routine.
You don’t need to do cardio when lean bulking, but including small amounts can benefit your recovery, health, and body composition.
Personally, when I’m lean bulking, I do this:
If you aren’t sure what kind or how much cardio you want to do, start with two hours of walking per week.
That’s all it takes to get the benefits of cardio without interfering with muscle growth.
This is enough to maximize muscle growth without having to deal with unnecessary fat gain.
This should allow you to gain 0.5 to 1 pound per week, which is your goal if you’re a man. Women should shoot for half of that.
If you’re new to weightlifting, you can easily double those numbers for your first three to six months, but you should see them settle into this range.
If you want to learn how many calories you should eat, check out this article:
Aside from water, the main component of muscle tissue is protein.
Therefore, for muscle hypertrophy to occur, you need to provide enough of the raw material (protein) for your muscles to grow larger and stronger.
How much exactly, though?
Well, one gram per pound of body weight per day is what most research shows is optimal for most people in most circumstances.
After protein intake, your next priority when trying to build muscle as quickly as possible is your carbohydrate intake.
That’s why I recommend you start with two grams of carbs per pound of bodyweight per day when bulking, and work up from there if (when) you need to increase your calories to continue gaining weight and size.
If you want to learn more about how to set up your diet to gain muscle effectively, then you want to check out this article:
I saved this for last because, quite frankly, it’s far less important than proper diet and training.
You see, supplements don’t build great physiques–dedication to proper training and nutrition does.
Unfortunately, the workout supplement industry is plagued by pseudoscience, ridiculous hype, misleading advertising and endorsements, products full of junk ingredients, underdosing key ingredients, and many other shenanigans.
Most supplement companies produce cheap, junk products and try to dazzle you with ridiculous marketing claims, high-profile (and very expensive) endorsements, pseudo-scientific babble, fancy-sounding proprietary blends, and flashy packaging.
So, while workout supplements don’t play a vital role in building muscle and losing fat, and many are a complete waste of money…the right ones can help.
The truth of the matter is there are safe, natural substances that have been scientifically proven to deliver benefits such as increased strength, muscle endurance and growth, fat loss, and more.
As a part of my work, it’s been my job to know what these substances are, and find products with them that I can use myself and recommend to others.
Finding high-quality, effective, and fairly priced products has always been a struggle, though.
That’s why I took matters into my own hands and decided to create my own supplements. And not just another line of “me too” supplements–the exact formulations I myself have always wanted and wished others would create.
I won’t go into a whole spiel here though. If you want to learn more about my supplement line, check this out.
For the purpose of this article, let’s just quickly review the supplements that are going to help you get the most out of your efforts to build muscle and lose fat.
Creatine is a substance found naturally in the body and in foods like red meat. It’s perhaps the most researched molecule in the world of sport supplements–the subject of hundreds of studies–and the consensus is very clear:
Supplementation with creatine helps…
You may have heard that creatine is bad for your kidneys, but these claims have been categorically and repeatedly disproven. In healthy subjects, creatine has been shown to have no harmful side effects, in both short- or long-term usage. People with kidney disease are not advised to supplement with creatine, however.
If you have healthy kidneys, I highly recommend that you supplement with creatine. It’s safe, cheap, and effective.
In terms of specific products, I use my own, of course, which is called RECHARGE.
RECHARGE is 100% naturally sweetened and flavored and each serving contains:
You don’t need protein supplements to gain muscle, but, considering how much protein you need to eat every day to maximize muscle growth, getting all your protein from whole food can be impractical.
That’s the main reason I created (and use) a whey protein supplement. (There’s also evidence that whey protein is particularly good for your post-workout nutrition.)
WHEY+ is 100% naturally sweetened and flavored whey isolate that is made from milk sourced from small dairy farms in Ireland, which are known for their exceptionally high-quality dairy.
I can confidently say that this is the creamiest, tastiest, healthiest all-natural whey protein powder you can find.
And for the same reasons it’s also no surprise that fat burners are some of the most expensive supplements on the shelves and feature some of the loudest marketing claims, often making big promises of “scientifically proven” rapid fat loss.
The reality is most “fat burners” are junk but there are a handful of natural, safe substances that have been scientifically proven to accelerate fat loss. And that’s why I created PHOENIX.
PHOENIX’s caffeine-free formulation is helps you burn fat faster in three different ways:
It accomplishes this through clinically effective dosages of several ingredients, including…
Through these mechanisms, naringin also works synergistically with synephrine and hesperidin to further accelerate the basal metabolic rate.
The bottom line is if you want to lose fat faster without pumping yourself full of stimulants or other potentially harmful chemicals…then you want to try PHOENIX.
There’s no question that a pre-workout supplement can get you fired up to get to work in the gym. There are downsides and potential risks, however.
Many pre-workout drinks are stuffed full of ineffective ingredients and/or minuscule dosages of otherwise good ingredients, making them little more than a few cheap stimulants with some “pixie dust” sprinkled in to make for a pretty label and convincing ad copy.
Many others don’t even have stimulants going for them and are just complete duds.
Others still are downright dangerous, like USPLabs’ popular pre-workout “Jack3d,”which contained a powerful (and now banned) stimulant known as DMAA.
Even worse was the popular pre-workout supplement “Craze,” which contained a chemical similar to methamphetamine.
The reality is it’s very hard to find a pre-workout supplement that’s light on stimulants but heavy on natural, safe, performance-enhancing ingredients like beta-alanine, betaine, and citrulline.
And that’s why I made my own pre-workout supplement. It’s called PULSE and it contains 6 of the most effective performance-enhancing ingredients available:
And what you won’t find in PULSE is equally special:
The bottom line is if you want to know what a pre-workout is supposed to feel like…if you want to experience the type of energy rush and performance boost that only clinically effective dosages of scientifically validated ingredients can deliver…then you want to try PULSE.
You can spend hundreds of hours studying muscle hypertrophy and barely scratch the surface.
It’s an extremely complex process that involves scores of physiological functions and adaptations.
Fortunately, you don’t need to be a scientist to have a working understanding of the research, and to use it to build muscle quickly and efficiently.
Here are the key takeaways:
And here’s the 5-step process you need to follow to put all of this into practice and build as much muscle as possible:
Do that, and you’ll have no trouble building muscle like clockwork.
Happy (clean) bulking!