1) Studies by Harvard Medical School and Brigham and Women's Hospital found that male pattern baldness is linked to an increased risk of heart disease, with the risk increasing based on the extent of hair loss. 2) Men with hair loss on the top of their head had a 23% increased risk of heart conditions, while men who had lost hair from most of the crown had a 36% increased risk. 3) Male pattern baldness is linked to higher levels of testosterone, which can increase heart disease risks by raising blood pressure and cholesterol levels.