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

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Extreme heat endangers older adults: What to know and do

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Harvard Health Experts and Contributors
List of Experts

Jeffrey Ecker, MD
Contributing Editor

Robert R. Edwards, Ph.D.
Contributing Editor

Andrew Eidelberg, MD
Contributor

David J. Einstein, MD
Contributor

Todd Ellerin, MD
Contributor

Rachel Reiff Ellis
Health Writer

Lauren Elson, MD
Contributor; Editorial Advisory Board Member, Harvard Health Publishing

Lawrence Epstein, MD
Contributor

Christopher Estiverne, MD
Contributor

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