Myth 2) Building muscle and bulking up are one in the same.
If you’ve been avoiding weights because you think that building muscle means that you’ll bulk up, think again. When you lift weights that are challenging, you actually create micro-tears in the muscle fibers. These tears are then repaired by the body (this is where soreness comes from!) and in that process the muscle becomes stronger and a little bit bigger. However, because muscle tissue is more dense than fat, adding a little bit more muscle to your body and decreasing your fat actually makes you look leaner—not bigger. To really bulk up, you have to really work with that goal in mind. Bodybuilders spend hours and hours in the gym lifting extremely heavy weights, along with eating a very strict diet that promotes muscle gain. The average person’s workout and diet—especially a calorie-controlled diet—doesn’t result in the same effects.
Myth 3) Lifting light weights won’t help you get stronger.
When it comes to lifting weights, the secret to really getting stronger isn’t about how much weight you’re lifting. Instead, it’s all about working your muscle to fatigue where you literally cannot lift the weight for another repetition. The August 2010 study from McMaster University that proved this found that even when subjects lifted lighter weights, they added as much muscle as those lifting heavy weights. However, the time it takes to reach fatigue with light weights is much longer than the time it takes to reach fatigue with heavier weights. So, if you’re like most people and extra time is a luxury, it makes more sense to go heavy and then go home!