As one of those random persons who has been weightlifting for 10+ years and is currently in their late 30s, I look great and I feel great. Yes, there is pain because you’re breaking down muscle fibers which repair and become stronger. Lots of people experience delayed onset muscle soreness, which is temporary. Some people don’t learn how to do things correctly and don’t listen to their body so they injure themselves.

What is the muscle building theory? Not everyone who does weightlifting is aiming for hypertrophy. Some are aiming for strength.

Honestly, it sounds like you’re trying to convince yourself not to do it. That’s okay. It’s difficult to know where to begin and avoid potential injury. It does take some time to learn. I like to recommend starting with a functional training class. This kind of class provides a guided session in building strength in everyday movements and provides a steady pace to really tune in to your body. It’s very difficult to injure yourself.