Some of the broader claims about the benefits of gratitude aren't backed up by science. Simone Golob/Getty Images hide caption toggle caption Simone Golob/Getty Images Shots - Health News Feeling Less Than Grateful? Some People Are Just Wired That Way December 26, 2016 Gratitude is linked to better physical and mental health. But some people are wired in a way that they place less value on it. And quickie exercises to boost gratefulness may not pay off.