Use a condom and speak to partner about STD's.
what is the safe way of performing sex. Means with the particular sexual activity with a partner one cannot contract any form of disease
Even a well educated people dont follow balance sex. Think about the teens, they are mostly exploited in their young age. They know about HIV and know using condom reduces the risk but what about other sexual activities, they are naive
Speaking as someone with a lot of knowledge about human sexuality and STDs, I think you are WAY off base. Nobody should minimize the potential for STDs and other downsides of sex, but on balance sex is much less dangerous than you suggest. We are in a much more sexually healthy era currently than at any time in human history.
I waa just thinking this the other day. We're here to essentially procreate but it seems there are so many diseases it makes sex unenjoyable because of the paranoia afterwards.
If we are not having disease then we should assume our self lucky.