Most people only train the muscles they can see in the mirror. Chest, biceps, abs. Maybe quads. That’s a big maybe. Most guys just opt to wear pants instead. But if you want to look like you actually lift, it’s the muscles you can’t see that matter most.  Lats, upper back, traps. These are …

First things first: it’s impossible to isolate any particular part of your body. Just because you’re performing a tricep pressdown, it doesn’t mean that only your tricep is working. Instead of thinking about muscles, it’s better to look at movements if you want to develop real strength, build muscle, and be resilient enough to …