More Gray Hair, Higher Heart Disease Risk?
Graying hair and heart disease share a number of the same risk factors associated with aging—damaged DNA and stressed cells. A new observational study suggests the two conditions are linked, that is, graying hair may be a heart disease indicator.
For the study, researchers evaluated 545 adult men for heart disease and divided them into subgroups based on hair color, based on this scale: 1 for pure dark hair, 2 for more dark hair than white, 3 for an equal amount of dark and white hair, 4 for more white hair than dark, and 5 for pure white hair.
The researchers also collected information about additional heart disease risk factors, including smoking, high blood pressure, high cholesterol, diabetes, etc. Study results show that higher amounts of gray hair in adult men—as indicated by a score of 3 or higher on the scale above—correlates to an increased heart disease risk.
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