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Effects of sleep deprivation

Progressive relaxation techniques for insomnia

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

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Harvard Health Experts and Contributors
List of Experts

Jeremy Whyman, MD
Contributor

Sarah Wilkie, MS
Contributor

Bill Williams
Guest Contributor

Kim Willment, PhD
Contributor

Molly Wolf, MD
Contributor

Anna R. Wolfson, MD
Contributor

Stephen P. Wood, MS, ACNP-BC
Contributor

Dominic Wu, MD
Contributing Editor

Charlotte S. Yeh, MD
Chief Medical Officer, AARP Services, Inc., Guest Contributor

James Yeh, MD, MPH
Contributor

Soo Youn, PhD
Contributor

Soo Jeong Youn, PhD
Contributor

Elaine W. Yu, MD, MMSc
Contributor

Marc Gregory Yu, MD
Contributor

Lisa Zakhary, MD, PhD
Contributor

Salim Zerriny, MD
Contributor

Eric Zhou, PhD
Contributor

Peter Zimetbaum, M.D.
Contributor

George S. Zubenko, MD, PhD
Contributor

Randall M. Zusman, MD
Contributor

Sydney Reynders, ScB
Contributor

Center on Media and Child Health
Contributor

Lisa Catanese, ELS
Health Writer

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