There’s an excellent resource out there, one that’s fairly new on the bookshelves. It’s a book called Hooked, written by Dr. Joe Mcilhaney and Dr. Freda Bush. It’s a study on how casual sex (i.e. the rampant “hook up” culture that exists today) affects teenagers and young adults.
These doctors study the brain’s activity, specifically in relation to what happens to people as they engage in sexual activity. The results are rather astounding.
It’s an easy read, something you should definitely check out. If you are curious to hear more, check out this article here that lists other books written along the same line.