The scientific explanations of...
 

Here are some interesting videos for everyone who is interested.


The science of pornography addiction
https://www.youtube.com/watch?v=1Ya67aLaaCc

The science of orgasms
https://www.youtube.com/watch?v=hpc2NjUAtOY

The science of "morning wood" (morning erection)
https://www.youtube.com/watch?v=D1et5NgT6bQ

Does penis size matter?
https://www.youtube.com/watch?v=BK3SXjJ5Zog

Does sex affect athletic performance?
https://www.youtube.com/watch?v=d0CRvOJqwzE

Do periods actually make women moody?
https://www.youtube.com/watch?v=LNDE_LDWXW0