New research done at the Yale School of Medicine indicates that for women in their 40s and 50s, the appearance of their wrinkles is an indicator of bone density. The worse their wrinkles are, the lower their bone density is.
This relationship between wrinkles and bone density was evident in all the bones the researchers tested — hip, lumbar spine and heel — and was independent of age, percentage of body fat and other factors known to influence bone density, Pal said.
Further, firmer face and forehead skin was associated with greater bone density.
The same also applies to men, but in a slightly different way. When men display wrinkle lines produced by pervy grins, their bone density is higher (if you catch my drift).
