Resistance training can improve your immune health, says Blink Fitness personal trainer and fitness manager Ellen Thompson. "Lifting weights releases serum cortisol and epinephrine, which are key players in regulating the immune system," she explains.
Exercise certainly isn't a "cure" for mental health issues, but lifting weights can help alleviate symptoms of depression and anxiety, Kollath says. Endorphin rushes and increased blood flow, plus all that confidence, can definitely boost your mood.
Your dad might worry that lifting all those weights can put you at increased risk of getting hurt — but if you're doing it right, resistance training can help prevent injury by strengthening your muscles, bones, and improving your overall movement habits.
"Hone your muscle-mind connection," Thompson encourages. The better you get to know your body through resistance training, the easier it will be to figure out what your body needs and when.