I find this topic incredibly interesting and take it down many paths. One thing that has stood out to me recently is how old bodybuilders look. But...we can chalk that up as all the drugs even
@luki7788 has said "no kidding" when I make that comment. The overall drugs absolutely age you.
BUT...forget guys on drugs. Some of the guys on trt (real trt) and natural people who train a lot look aged, worn, tired. I don't want to say the guys name because he's a good dude and I truly believe he is natural but there is a guy who has done a ton of videos on youtube and he looks 65 years old....he's like 40. Look close at some of these people that train all the time, over and over and over and over...they look...old. They are aging faster, not slower.
So let me ask this...between our absolute crap diets and training over and over...is that aging us? Think about it this way...
your normal person (even ones that think they train hard or crossfit people etc) goes to the gym and lifts and trains. The repeated bout effect has long stopped them from actually growing more tissue and the myocytic androgen receptor helps them get a little stronger. But is anything else really happening? Maybe sarcoplasmic hypertrophy depending on diet? So what are they really doing different from your run of the mill factory worker lifting boxes everyday? We accept that people with manual labor jobs age faster overall. What is the difference between
most trainers and a factory worker?