Illustration showing a bodybuilder doing optimized lateral raises to build bigger side delts.

The Best Side Delt Exercises Are Weird Lateral Raises

The overhead press is the best overall shoulder exercise. If you want a minimalist workout routine, that’s all you need. If you really want to build bigger side delts, though, it pays to include an exercise that trains them directly.

Lateral raises are the best exercise for your side delts, and they can take you quite far, but you can do even better. Lateral raises are easy to improve upon. Here’s how.

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Illustration of a bodybuilder holding a heavy barbell and a light dumbbell.

Should You Lift More Weight or Do More Reps to Build Muscle?

The top search result for this question is wrong, and it’s bugging me. There’s this old myth that heavier weights are better for building muscle while lighter weights are better for gaining endurance. That’s not quite right.

Both low-rep and high-rep sets can be equally good for building muscle. Anywhere from 4–40 reps per set stimulates a similar amount of muscle growth. Doing 6–20 reps tends to be a little easier and more efficient. Most bodybuilders lift right in the middle, favouring 8–12 reps.

However, different rep ranges provoke slightly different adaptations. The best way to build muscle is to take advantage of both. A balanced muscle-building program will use a mix of heavier weights and higher reps. More on that in a moment.

This begs another question: when you progressively overload your exercises, should you focus on adding more weight or adding more reps? Both can be equally good for building muscle. It all depends on what exercise you’re doing and what you’re trying to accomplish.

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Illustration of a skinny beginner working out to build muscle.

The Best Workout Routine for Skinny Beginners

Most skinny guys are eager to build muscle fast. I don’t blame them. I was the same way. When I weighed 130 pounds, with a BMI under 17, I was sick of being skinny. I wanted to get out of that situation as quickly as possible.

The best way to build muscle is to lift weights. Most of us know that. But I had just graduated from university with a degree in graphic design, I’d never been active, and I didn’t know a single person who lifted weights. Well, I knew one person who shoplifted, but I didn’t want any part of that. And when you’re that far outside of a subculture, it can be hard to know where to start or what to do.

Since then, I’ve gained 70 pounds, going from a 65-pound bench press to a 315-pound bench press. My business partner, Marco, has helped college, professional, and Olympic athletes bulk up. Together, we’ve spent over a decade helping millions of readers and over 10,000 skinny clients build muscle (naturally).

Fortunately, once skinny guys start following a good workout plan and eating a proper bulking diet, we can gain muscle faster than any other body type. Our frames are empty and eager for muscle growth. Most of us are able to gain 25 pounds within our first 6 months of working out. Some of our clients have gained 40.

In this article, I’ll walk you through the process of training for muscle growth. By the end, you’ll know exactly what to do.

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Illustration of a skinny guy building bigger arms by doing weight lifting exercises.

How to Build Bigger Arms (For Skinny Guys)

I’ve managed to bring my arms from 10 inches up to 16 inches. But I got off to a rough start. During my first two years of successful bulking, I gained 40 pounds at 11% body fat, bringing my bench from 65 to 225 pounds and doing chin-ups with 50 pounds around my waist. Yet, despite my progress, I had only added 2 inches to my arms. My arms were still 1.3 inches smaller than average, and the average man doesn’t even exercise!

That’s when I realized my mistake. I was relying on compound lifts to bulk up my arms. When I finally added proper arm exercises to my workout program, my arms quickly shot up to 14 inches, then gradually climbed to 16 inches. Surprisingly, my bench press started going up again. I was finally able to bench 315.

We’ve used these same methods with over 10,000 skinny clients and millions of readers. If you add these methods to your workout routine, you can expect to add around 2 inches to your arms within the next 6 months. That’s what our clients gain, on average.

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Calisthenics Vs Weights: Which Builds More Muscle?

Both calisthenics and weight training can stimulate muscle growth. That’s not answering your question, though. Resistance bands, bodybuilding, and powerlifting all stimulate muscle growth. So can cardio. So can flexing your muscles (study).

We’ve helped thousands of people bulk up over the past decade, some using weights, others with pure calisthenics. We’ve seen how their results compare. There’s also research comparing the results people get with calisthenics vs weight training. We can take that into consideration, too.

We don’t have a bias. We don’t sell weights or gymnastic rings. Our brand isn’t built on one approach or the other. We’ve trained both ways. We’re happy to use and recommend whatever gives the best results.

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Illustration of a bodybuilder doing cardio after lifting weights, but he's losing all his muscle mass.

Does Cardio Kill Muscle Gains?

Cardio can kill muscle gains. We’ve known this for many decades. It’s common knowledge among lifters and has been proven in peer-reviewed studies. Most recently, a study found that cardio cut muscle growth in half. We’ll go over the nuance of that study in a moment.

However, if you’re clever, you can use cardio to improve your muscle growth. This is fairly well-documented, too. We’ll go over some interesting research. I’ll also point out that in our twelve years of helping skinny guys bulk up, the guys who get the best results are the ones in good shape overall.

So, let’s talk about how to do cardio in a way that enhances instead of destroying your muscle gains.

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Illustration of a barbarian bodybuilder lifting weights to maintain his muscle size and strength.

Maintenance Training Volume: How Many Sets to Maintain Muscle?

The other day, I wrote an article about Reverse Bulking, my favourite method for maintaining gains after bulking. The idea is to keep lifting weights, keep eating a good diet, and keep living a healthy lifestyle, but to start listening to your appetite again. Most naturally thin guys tend to eat less, lose weight, and reclaim any leanness lost while bulking—while maintaining their gains.

The idea of Reverse Bulking brings up a couple of questions. Perhaps the most important of those is how hard we should train to maintain our muscle size and strength. More specifically, how many hard sets do we need per muscle group? How much volume do we need?

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Illustration showing a bodybuilder resting between sets.

How Long Should You Rest Between Sets to Build Muscle?

Rest times are often brushed aside. You’ll hear that they matter, sure, but that they aren’t one of the more important factors—that they’ll only have a negligible impact on your muscle growth. That’s not necessarily true.

If we look at the research, using proper rest times can double your muscle growth or, if you do it the wrong way around, cut your muscle growth in half. 

But it’s not quite as simple as long or short rest times being better for building muscle. Thankfully, there’s more than one way to unskinny a cat.

Let’s dive into it.

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