Very huge memory loss
Losing interest even in routine work
Lack of concentration
Embarrassment from all the corners
Disappointment after marriage
no, not at all, unless if you have low stamina to go more than one round
Yes. Any Un-natural means of satisfying sex is haram.
with toys
Yes, it relieves stress.
no
No, sex has no effect on implanation of the egg.
Masturbation does mean you should enjoy yourself and so you can ejaculate by yourself.
By having sex i have sex 3 times a day
veins help with sex and the effect of sympathetic activity on veins is that it will help with sex
they have sex
Sex
Sex
When teens have sex, providing it is safe sex, there is no effect. When, who & where you have sex is each individual persons business, not the communities.