Bullshit, nicotine is one of the few things to increase T.
It's not about testosterone. Nicotine and cotinine cross the blood-testis barrier and have mutagenic properties. Your T can be off the charts and you can still be damaging the DNA of the sperm.
It's not about testosterone. Nicotine and cotinine cross the blood-testis barrier and have mutagenic properties. Your T can be off the charts and you can still be damaging the DNA of the sperm.
Steroid abousers have massive testosterone and deformed children. Especially if they are older.