CONTACTS: Breast Cancer Fund, www.breastcancerfund.org; National Health and Nutrition Examination Survey, www.cdc.gov/nchs/nhanes.htm; Obesity Society, www.obesity.org.
GOT AN ENVIRONMENTAL QUESTION? Send it to: EarthTalk, c/o E/The Environmental Magazine, P.O. Box 5098, Westport, CT 06881; submit it at: www.emagazine.com/earthtalk/thisweek/, or e-mail: earthtalk@emagazine.com. Read past columns at: www.emagazine.com/earthtalk/archives.php.



See what we're tweeting about




5 Comments
Add Comment"She adds that the brain can only build the connections used to learn a language, play a musical instrument or ride a bike before it gets flooded with the sex hormones that come with the onset of puberty." What?
Reply | Report Abuse | Link to thisthe article says tht more active the kid is more melatonin it produces and thus longer it will take to reach puberty. I guess that s right because am one such case.I have been very active in my childhood .I am 20 years old and i have not attained puberty .
Reply | Report Abuse | Link to thisWhether sedentary lifestyles are part of the cause or not, people need to exercise more than they do now anyway. Our bodies are meant to be challenged.
Reply | Report Abuse | Link to thisWhether sedentary lifestyles are the cause or not, people need to exercise more anyway. Our bodies were meant to be worked.
Reply | Report Abuse | Link to thisnot attaining puberty by the age of 20 is not normal, i don't think. I am not a professional, but from what i know, most children are active and they play around until they are tired, and usually they sleep early cause of that.
Reply | Report Abuse | Link to this