No. It will not cause excessive hair, blindness, hell, or anything else. It is natural and normal. Most people do it. It doesn't make sense that it would be harmful, because the act of sex in itself is not, and masturbation is just mimicking it. The only way masturbation could be a problem is if it interferes with everyday life.
no it is not
mastrubation
why did olw has hamful
No it does not.
Just Stop.
Stress relief
a blue whale
no
Masturbation doesn't do any damage.
i don't know what hamful is. but if you mean harmful then yes.
you would die of birth in 20 years!
There is no best way. It is whatever you find suitable.