How often should have sex?

How often should have sex in order to maintain a normal hormonal balance in the body and overall health? After a survey among 2,000 residents of Albion, experts have found out how of ten couples have sex. 
For example, girls aged 16-24 are having sex an average of 1-3 times per week, while women aged 45-59 years - 1 every 2 weeks. Single men have sex 20 times less often married. The same is true for the fair sex. 
The most memorable sex - first intimacy with a new partner. Also, the strong impression of sexual intercourse are men and women if they conduct sexual experiments. 
So how often should I be given an intimate caresses with health benefits? Expertssay that it is best to have sex 2-3 times a week. If intimacy is becoming increasingly rare, it may adversely affect the health of partners. And if you have an increased sexual appetite and sex three times a week, it seemsrare, there is no need to abstain - to meet their needs.