Experts Say You Can Have Better Sex By Staying Physically Fit

NEW YORK (CBSNewYork) - If you Google "how to have better sex" you'll find some 700 million posts.

Some of the best doctors, scientists and institutions all over the world have documented their own theories. The common denominator in the majority of the research? Physical fitness.

"If you feel good, if you look good, all of those things will also enhance your relationship with your significant other, or others," Dr. Jeff Gardere of Touro College of Osteopathic Medicine told CBS2's Chris Wragge.

If you want to increase confidence, boost your sex drive, fight stress, increase blood flow and improve endurance, then you'll have to work out, Wragge reported.

Fitness champions Eric Salvador and Amanda Butler instruct at the Fhitting Room in Flatiron. Their classes are high intensity, and are working for men and women who want more than to just get into or stay in shape.

"I get a lot of couples, husbands and wives, and they're like 'Thank you Eric, I mean, these workouts have changed us,' as far as in their personal life and also being together," Salvador said.

"A lot of women are really dedicated to it. But staying active, it really translates into your personal life. Obviously, in the bedroom, the better you feel about yourself. You can keep the lights on ladies!" said Butler.

In the latest "Breaking Muscle," one study showed a direct correlation high intensity training and increased pleasure for women in their 40s and 50s. For men, weightlifting promotes the production of testosterone. A Harvard study of 31,000 men over 50 found that burning just 200 calories a day resulted in a 30% lower risk of erectile dysfunction."

"A lot of men go through some of the issues as far as their functioning. And if it's not where it should be, it can really destroy their self-esteem," said Gardere.

For men, the options are laying on the couch and sitting through another commercial telling them what they can't do, or they can get up, bike, swim, do yoga. Instead of burning 200 calories a day, come to a class and burn 800, Wragge reported.

"The energy, confidence, everything is definitely going up," said Fhitness class attendee Robert Munro.

"I feel lucky I discovered it at a young age. But I feel it's a place we can all tap into," said Willa Kammerer.