The production of healthy sperm requires a cool environment, about 3 or 4 degrees C lower than core temperature. Thus keeping the testicles warm will result in malformed batched or sperm that will be next to usless fertily. But this will only affect the batched produced when the testicles are warm and so no long term effects like sterility occur.
No this will not make him sterile.
Not sterile but it can surely reduce the viability of your sperm. The testicular sac is situated outside the body for just this purpose. The heat weakens the sperm mobility.
No but they will make his bread rise
No, newspapers are not sterile as they can harbor various types of bacteria and viruses, especially if they have been handled by multiple people. It is always advisable to wash your hands after handling newspapers.
No.
No.
No.
no .
"sterile" means that all microbes have been killed by radiation or heat.
It can 'shrink' your testes........somewhat
no shut up...
make free from becteria