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Effects of sleep deprivation

Progressive relaxation techniques for insomnia

Prescription insomnia medications: What to know

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

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Harvard Health Experts and Contributors
List of Experts

Davis Kimaiyo, MD
Contributor

George King, MD
Contributor

Daniel Kirshenbaum, MD
Contributor

Sarah Klein
Health Writer

Lauren Ko, MD, MEd
Contributor

Anthony L. Komaroff, MD
Editor in Chief, Harvard Health Letter; Editorial Advisory Board Member, Harvard Health Publishing

Megan A. Koster, MD, PharmD
Contributor; Editorial Advisory Board Member, Harvard Health Publishing

Parul Kothari, MD
Contributor

Arianne Shadi Kourosh, MD, MPH
Contributor

Suzanne Koven, MD, MFA
Contributor

Rebecca Kranz
Health Writer

Lorrie Kubicek, MT-BC
Contributor

Daniel Kuritzkes, MD
Contributor

Deborah Kwolek, MD, FACP, FAMWA, MSCP
Editorial Advisory Board Member, Harvard Health Publishing

Daniela J. Lamas, MD
Contributor

Adam Landman, MD, MS, MIS, MHS
Contributor

Adaira I. Landry, MD, MEd
Contributor

Gayle Lang, OTR/L, CHT, MS
Contributor

Helene Langevin, MD
Contributor

Debi LaPlante, PhD
Contributor

Nicole J. LeBlanc, MA
Contributor

Erica H. Lee, PhD
Contributor

Dara K. Lee Lewis, MD
Contributor; Editorial Advisory Board Member, Harvard Health Publishing

Anthony Lembo, MD
Contributor

Inga Lennes, MD, MPH, MBA
Contributor

How is PSA used to monitor prostate cancer?

Effects of sleep deprivation

Progressive relaxation techniques for insomnia

Prescription insomnia medications: What to know

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