This page was printed from: https://www.medicalnewstoday.com/articles/321863.php
Visit www.medicalnewstoday.com for medical news and health news headlines posted throughout the day, every day.
2018 Healthline Media UK Ltd. All rights reserved. MNT is the registered trade mark of Healthline Media. Any medical information published on this website is not intended as a substitute for informed medical advice and you should not take any action before consulting with a healthcare professional.