It was the name of a Travis Tritt song. I heard John Force refer to it recently in an interview, it was told to him by Austin Coil his former crew chief/friend. Then, I read a men's health thread on another forum and found it helpful.
At any rate, I'm going to share some personal info in case it might help someone else. I turned 67 recently and intend to ride as long as possible. My brother gave it up at 80 due to waking up on the ground on occasion. I've gone on the Keto diet, lost almost 50 lbs. since June. At the start I was shedding .4 lbs. a day. Drank 2 low carb beers almost every day and wasn't ever hungry. My Doc. says we can supplement testosterone if I want to. I'm trying some supplements first.
I haven't joined a gym since my old one went out of business, but began lifting at home. Lighter weights but more reps.
I can now wear a leather jacket that my wife bought for me at the local Kawasaki shop around 1975. I was only keeping it in case it fit a son in law or grandson some day. Looks like I may get a chance to wear it out again.
My wife has lost enough weight to get a new hip joint (that fixed her back and she thinks she will be able to take long rides on the bike again). It would be difficult to do the low carb diet if she wasn't joining in. At any rate, I'm here to share what I've learned if anyone is curious about low carb diets. It goes against a lot of conventional nutrition thought, not for everyone.