**3. Effects of obesity on male reproduction**

Historically, the impact of obesity on reproduction has largely been researched in female populations with very little examination of the impact of male obesity. There is, however, a growing body of research to indicate that obesity in the male is a cause for concern. A systematic review of 30 studies with over 115,000 participants found that obese men were more likely to experience infertility and that clinical pregnancy and live birth rates per assisted reproduction cycle were reduced.
