49 citations
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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
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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
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December 2013 in “BIRDEM Medical Journal” Older people with type 2 diabetes are more likely to have gum disease.
175 citations
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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
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May 2007 in “Menopause International” After menopause, women lose a lot of skin collagen, but estrogen replacement might improve skin health.