Dr. Jeffrey Bland says grip strength is the single best measure of biological aging. A decade ago, doctors dismissed the idea. Now longitudinal grip-strength tests are the most reliable physical marker for how your metabolism is actually aging.
I said, so in terms of the tools that you use, what would you consider the singular most important assessment tool for assessing the level of biological aging of your clientele? Not your chronological aging, which you can get off your birthdays, but biological aging. You said, oh, well, that's simple. It's this. It's the hand dynamometer. It's a grip strength tester. Now, 10 years ago, I started talking about grip strength to medical audiences, and they thought I was crazy when I talked about this as a surrogate marker for metabolic biological aging. Bilateral grip strength over time is the best singular physical assessment you can use to assess biological aging.
