Your parents may not be to blame (or thank) for the shape of your nose as much as you might think. An international team of researchers found that the shape of someone’s nose was formed over centuries of adaptation to their local climate. According to research published in PLOS Genetics, nose width is strongly correlated with temperature and absolute humidity, noting that “wider noses are more common in warm-humid climates, while narrower noses are more common in cold-dry climates.” One of the jobs the nose performs is to condition inhaled air, making it moist and warm. Narrow nostrils appear to change the airflow so that the inside of the nose can humidify and warm the air more efficiently, which is more essential, both in terms of health and reproduction, in cold, dry climates.http://www.readersdigest.ca/features/...http://www.wochit.comThis video was produced by YT Wochit News using http://wochit.com
TagsFeatures history Trivia Mark Shriver Nose Climate Nostril Human Body Humidity Anatomy Mark D. Shriver Nose Ridge Human Nose Dr. Shriver.