2. Bad knees
Your knees are sensitive. Some people get bad knees just by jogging a few times a week. Imagine what could happen if you are on your knees and another person is on you a few times a week (or day.) Bye-bye stilettos, hello orthotics.
3. Bruised elbows
Like a good propped-on-your-side position? Plenty of women report it’s a great way to help their partner access their g-spot. But doing that every night can leave your elbows feeling like you walked through a doorway while putting your hair in a pony tail and WHAM! Slammed your funny bone.