Sex: Eat, Exercise, Relax, & Sleep for Better Sex (cont.)

"If you have heart disease, then you might be taking medication that would inhibit sexual activity, or you might be afraid to have a heart attack," says Allred. "If you have the flu, a high fever, or just don't feel good ... any of these things would be a turn-off."

Mark Kantor, PhD, associate professor of nutrition and food science at the University of Maryland, agrees, saying, "You will feel sexy if you look and feel good."

A way to do that is to eat an overall balanced diet and to exercise each day. The two go hand-in-hand, says Kantor, as demonstrated by today's obesity problem, in which people eat too much food and aren't active enough.

Move That Body

Being physically active can be a natural Viagra boost, according to the American Council on Exercise (ACE), which recommends 20 to 30 minutes of moderate exertion a day.

"Men and women who exercise regularly are going to have increased levels of desire," says Cedric Bryant, PhD, ACE's chief exercise physiologist. "They're going to have enhanced confidence, enhanced ability to achieve orgasm, and greater sexual satisfaction."

If that isn't motivation enough to work out, consider this: Researchers have found that there is a correlation between waist size and a man's odds of having erectile dysfunction (ED). The larger the man's waist size, the greater his chance of having ED (because of a higher risk of underlying cardiovascular disease).

Need more positive reinforcement? Studies show that regular, moderate exercise can have a positive benefit on major sexual problems, such as ED in men and low libido in both men and women.

It only makes sense, say experts, since ED is often caused by poor blood flow to the penis, and exercise can improve the body's ability to pump and circulate blood throughout the body.

The same can be true for the ladies. In one University of Texas at Austin study, physically active women who watched an X-rated film had a 169% greater blood flow to the vagina compared with when they were inactive.

And there's more good news. Mark says exercise can promote the body's release of hormones important for sexual arousal, increase aerobic capacity and muscle strength, and boost self-body image -- all definite benefits for between-the-sheets play.

Sweet Dreams

For many of us, a good roll in the sack requires energy and the right mood -- elements that can be compromised when we are sleepy or tired.

While there is no direct relationship between slumber and better sex, a National Sleep Foundation (NSF) poll, conducted in 2002, shows people's moods can be affected by the amount of shut-eye they get.

People who sleep less than six hours are more likely to report they are tired, stressed, sad, and angry than those who sleep more than eight hours. On the other hand, those with few sleep problems tend to report they are "full of energy," "relaxed," and "happy."