While sex toys are often used recreationally, they can also improve sexual function for people with certain medical conditions. Diabetes and multiple sclerosis, for instance, affect nerve transmission, which can dull sexual sensation. People taking medications for high blood pressure and depression can also suffer side effects that limit sexual response. And women who undergo hormonal changes during menopause or who suffer nerve damage after surgery sometimes find their clitorises to be less sensitive; a sex toy might be necessary to increase arousal. Vibrators were invented as medical equipment for treating female hysteria and other pelvic disorders.                   

   http://www.slate.com/id/2175308

44 % of woman between the age of 18 and 24 say they have kissed another girl. 

A passionate kiss uses up 6.4 calories per minute (it really depends on intensity).

During a kiss, as many as 278 bacteria colonies are exchanged.

The average person spends two weeks of their life kissing. 

A study has shown that men live up to five years longer if they kiss their wife before going to work.

There are about 2.5 TRILLION red blood cells in your body at any moment. That means to maintain this number, we produce around two and a half million new ones ever second by your bone marrow.