Girls aren't alone in hitting puberty earlier -- boys are, too, according to a study published Monday in the medical journal JAMA Pediatrics. And boys' body mass index as children might play a role.
원문출처 : https://www.cnn.com/2019/07/22/health/boys-earlier-puberty-study/index.html
원문출처 : https://www.cnn.com/2019/07/22/health/boys-earlier-puberty-study/index.html