A year ago Bill Frainey didn't feel like his old self--he just felt old--and he's only 45.

He was diagnosed with low testosterone but now has the energy to lace his shoes and exercise.

"I think the last thing anyone wants to hear is that their t score is low and that he is not 25 anymore--even in reality we know we're not," Bill said.

Forest Park Medical Center Dr. Anthony O' Connell prescribed a daily dose of topical testosterone cream. He's diagnosed men as young as 34.

"Typically," Dr. O' Connell said. "Testosterone levels decline 0.5% to 1% per year but what we've seen over the past two or three generation--there has been a generational decline in testosterone levels where a 40- year old man today will have had a lower testosterone level than a 40-year old man 20 or 30 years ago."

Bill says testosterone treatment is like a mental trigger--he feels like he did 20 years ago.

"You feel better, you've got energy," Bill said. "Your brain moves quicker, you are a little more aggressive in terms of how you approach things."

Bill started applying testosterone 8-months ago when he weighed 235 pounds--today he weighs 214 pounds.

His body fat was 36%--now it's down to 23%.

His cholesterol level was 380--now it's 170.

He says testosterone provided the spark.

"That seems to be what kick starts your energy and gets your body moving but you can't do it by yourself, you have to do it with the diet and exercise and the entire plan working together," Bill said.

Testosterone therapy can have side effects--including an increased risk of prostate cancer--that's why Dr. O' Connell checks Bill's blood work every month.

"We're not the guys promoting anabolic steroids in the gym," Dr. O' Connell said. "This is a medical treatment for people who have low testosterone levels."

As for Bill--you're as old as you feel.

"You feel a little closer to 25 than 45," Bill said.