Bad Habits That Boost Your Flu Risk

Having a Negative Attitude

A 2010 study published in Psychological Science showed that law students who were optimistic about their futures had stronger immune systems. Try to keep a good outlook on life and always talk to a doctor or health care provider if you’re feeling bad.
Reviewed by: 
Review Date: 
February 7, 2014

Last Updated:
September 15, 2014