Longevity Fest in Las Vegas, one of the world's premier gatherings of health professionals, has just wrapped up for another year. The meeting of the American Academy of Anti-Aging Medicine (A4M ) attracts experts from around the world. Doctors, nurses, researchers and health entrepreneurs share insights into the latest biotech, supplementation and health protocols to promote a long healthspan - the number of years we live free of chronic disease. We met up with Jen Scheinman from Time...