GETTING THE EDGE: "PRIMETIME LIVE" EXPLORES SURPRISING 'SHORTCUTS' THAT SOME ARE TAKING IN THE ETERNAL QUEST FOR HEALTH, SUCCESS AND PLEASURE

Also: Cynthia McFadden's Exclusive Interview with Frank Tyson, A Key Figure in the Michael Jackson Criminal Case

An all-natural pill that some hope could turn back the clock on certain body chemicals -- researchers hope that one day it may help us live longer and avoid certain diseases; a boost for the brain that students are taking as if it were a harmless study aid, but which is, in fact, a prescription medicine that can be addictive; herbal supplements that claim to enhance men's sexual experience... From the classroom to the bedroom, it seems that Americans are more determined than ever to get an edge in their quest for health, success and pleasure. "Primetime Live" explores some of these more intriguing new 'shortcuts,' THURSDAY, JUNE 2 (10:00-11:00 p.m., ET) on the ABC Television Network.

Chris Cuomo investigates natural supplements that promise dramatic male sexual enhancement. He talks with medical experts who weigh in on whether there is any science to back up the bold claims made by purveyors who are making millions in this booming industry.

"Primetime" also follows a college student who, like thousands of her peers, has found a new way to improve her concentration during her stressful finals week - she pops prescription pills intended for people with Attention Deficit Hyperactivity Disorder (ADHD). Cuomo reports that this underground campus culture has grown at an alarming rate, resulting in a thriving black market for these potentially habit-forming drugs.

Then: It's known that one of the primary causes of aging is the process of oxidative stress, brought on by so-called free radicals in the body. Up until now, there has been no substance shown to significantly lower levels of oxidative stress in humans or animals. But trials are underway for a pill that can do just that, according to claims by its developer. John Quiqones reports that, while nobody is claiming that this could be a veritable fountain of youth, there is cautious optimism among some researchers that it will help answer fundamental questions about disease and aging.

And: In an exclusive interview, Cynthia McFadden talks with Frank Tyson, a Michael Jackson confidant and an unindicted alleged co-conspirator in Jackson's headline-making criminal case.

DIANE SAWYER, CHRIS CUOMO, CYNTHIA McFADDEN and JOHN QUIQONES are the anchors of "Primetime Live." DAVID SLOAN is the executive producer.