If somebody take testestrone replacement at 42years old now he's 48 if he stop he's body well make testestrone again?

Not in most cases: Hi. Assuming there was no treatable cause of the initial diagnosis of testo deficiency, if the testo replacement is stopped, the underlying cause of the deficiency will have been in no way reversed or treated. Therefore, it's unlikely he will produce any more testo that you did in your deficiency state when you were originally diagnosed. Good luck!

Here are some...: This Q was "repeatedly" answered; nonetheless, repeat here. The practice to hold hands tight to the heart with a wishful thinking is common in all humans to serve political correctness, to obscure ignorance, and to artificially fill the vacuum of loss. Likewise, wishing to live forever has been manifested in the history of all cultures. For the ordinary, just do within our control, don't get lost.