If you dont take any protein or steroids or any supplements does weightlifting cause testosterone and dht to increase and contribute to a man balding? or would doing just cardio prevent that from happening?

Interesting thoughts: Haven't heard of manual work or weight-lifting changing testosterone levels or effects. Otherwise, if there is a balding relationship, workers such as warehouse workers or longshoremen, and athletes such as American football players who lift weights a lot, would end up bald. We don't see entire warehouses full of bald men, nor teams full of bald players.