Why men's ring fingers are longer than their index fingers: Male-female ring finger proportions tied to sex hormones in embryo
Monday, September 5, 2011 - 16:30
in Health & Medicine
Providing a genetic explanation for a raft of studies that link finger proportions with traits ranging from sperm counts and musical ability to health problems such as autism, depression and heart attack, researchers have found that male and female digit proportions are determined by the balance of sex hormones during early embryonic development.