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Gratitude enhances health, brings happiness — and may even lengthen lives

Peter Wehrwein
Contributor, Harvard Health
Peter Wehrwein was the editor of the Harvard Health Letter from 1999 to May 2012. He is currently a freelance writer and editor, and contributes to the Harvard Health blog and HarvardProstateKnowledge.org. Before editing the Health Letter, he was editor of the Harvard Public Health Review and director of development communications at the Harvard School of Public Health. Prior to working at Harvard, Wehrwein was a reporter for newspapers in Albany, N.Y., Union City, N.J., Brooklyn, N.Y., and Big Lake, Minn. He has written for Newsweek, The Lancet, Managed Care, and the American Academy of Family Physicians. Wehrwein was a journalism fellow at the Harvard School of Public Health in 1993-94. He earned a B.A. in history from Yale University in 1980.

How is PSA used to monitor prostate cancer?

Effects of sleep deprivation

Progressive relaxation techniques for insomnia

How to test for sleep apnea: At home or in a lab

How sleep deprivation can harm your health

Extreme heat endangers older adults: What to know and do

Want to cool down? 14 ideas to try

What is a PSA test and how is it used?

Blood sugar–friendly fruits if you have diabetes

Gratitude enhances health, brings happiness — and may even lengthen lives