From Our Friends at FIT Bodywrap! Infrared can lower cortisol levels, which may calm down a stressed, or high heart rate and reduce high blood pressure. A 2009 study found that regular infrared immersion can increase serotonin levels which directly impact poor mood, sleep, and behavior. #FITFactFridaypic.twitter.com/nsrw8btQ89 http://ift.tt/2FTE4Rr Infrared can lower cortisol levels, which may calm down a stressed, or high heart rate and reduce high blood pressure. A 2009 study found that regular infrared immersion can increase serotonin levels which directly impact poor mood, sleep, and behavior. #FITFactFriday pic.twitter.com/nsrw8btQ89