Cautious…I think that you are reacting a bit too much…but even I would do the same thing if I were in your shoes …I guess! It’s important to know that exercises without a proper guidance or instructions can harm the muscles and you need to take a note on this. My brother, who is also a exercise freak…was on the same ship as your son for [url=http://www.sixpackabsexercises.com/]how to get six pack abs[/url] and later he found a great guide that not only made him have them but in a proper way that was comfortable to his physical and mental well-being. You can give it a look (try the link).
yes, mom, over reacting, I agree. Suggest he do some reading,researching or speak to a trainer (you could offer to pay for him to go to one session with a trainer to get a routine worked out that is safe and effective) - - - and then butt out.
Kids do all sorts of weird things - he won't hurt himself as long as he is healthy.
You can lead a horse to water....
Maybe you should sign him up for the local YMCA so trainers can help him and so he can use weight machines and stuff. Maybe he should sign up for a sport like karate, wrestling, footballl, hockey, gymnastics, and more. I did gymnastics and it gave me the best looking abs EVER!