Good health and a fit body are inextricably entwined with great sex. On a physical level, fitness makes one a more attractive and skilled lover. On an emotional level, studies show that body image plays a key role in sexual desire and satisfaction. Research has linked a healthy sex life to lower risks of cardiovascular disease, diabetes, depression, and obesity.

Based on the latest research on sexual health, behavioral psychology, fitness, and nutrition, The Men’s Health and Women’s Health Big Book of Sex is brimming with useful tips, exercise photos, practical sidebars, and more. The two-sided book also features the Better-Sex Workout, the Better-Sex Diet, a Trouble-Shooter’s Guide to Sexual Health, and Q&A columns from the Men’s Health “Girl Next Door” and Women’s Health “Guy Next Door” and leading sexual health experts.

JEFF CSATARI, a veteran editor of Men’s Health, is the author of the New York Times bestseller The Belly Off! Diet and Your Best Body at 40+. He lives in Bethlehem, PA.