Stop killing your orgasms!
Hold your breath during sex and you may as well not bother trying to orgasm at all...
According to a study by the Center For Marital And Sexual Studies in Los Angeles, most women tend to unconsciously hold their breathe during sex.
As they head toward climax, they stop breathing properly as though physically waiting for the Big O to descend, but this actually has the reverse affect and kills any arousal previously built up.
So remember, next time you're nearing climax, take long deep breathes and envisage yourself reaching orgasm. The more you control your breathing, the deeper your orgasms will be.