If you need another reason to keep your weight down, especially this holiday season, use better sex as your motivator! As stated in the December issue of Glamour [1] magazine, research shows that sustaining a healthy weight can actually boost sex drive and fertility in both men and women. Mary Jane Minkin, MD, explains that extra body fat makes extra estrogen which has the ability to hinder ovulation in women, and new research reveals that those excess pounds on men could damage their precious sperm [2].

Since exercising gives you those "feel-good endorphins," hit the gym and keep your BMI [3] between 20 and 24.9 — your body and boyfriend will thank you!

Source [4]