49 citations,
April 2010 in “International Journal of Cosmetic Science” Hair ages as the cuticle wears down, especially beyond 1 meter from the root, affecting its strength and shine.
17 citations,
June 2012 in “The Anatolian journal of cardiology” Premature hair graying may be a sign of increased risk for heart disease, indicating biological age is more important than actual age.
2 citations,
December 2013 in “BIRDEM Medical Journal” Older people with type 2 diabetes are more likely to have gum disease.
175 citations,
November 2009 in “PLOS ONE” Women look young for their age due to larger lips, less sun damage, and genes that prevent gray hair and wrinkles.
76 citations,
May 2007 in “Menopause International” After menopause, women lose a lot of skin collagen, but estrogen replacement might improve skin health.