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Harvard Health Experts and Contributors
List of Experts

Payal Patel, MD
Contributor

Vikram Patel, MBBS, PhD
Contributor

Daniel Pendick
Former Executive Editor, Harvard Men's Health Watch

Numa Perez, MD
Contributor

Edward Phillips, MD
Contributor

Shiv Pillai, PhD, MBBS
Contributor

Srini Pillay, MD
Contributor

Jorge Plutzky, MD
Contributor

Melanie Pogach, MD
Contributor

Rani Polak, MD, Chef, MBA
Contributor

Martina Porter, MD
Editorial Advisory Board Member, Harvard Health Publishing

Heather Potts, PhD
Contributor

Anthony Prince, MD
Contributor

Mark Proctor, MD
Contributing Editor

Stuart Quan, MD
Contributing Editor

Loren Rabinowitz, MD
Contributor

David Ramsey, MD, PhD, MPH
Contributor

Vikram Rangan, MD
Contributor

John J. Ratey, MD
Contributor

Niyoti Reddy, MD
Contributor

Emily Reiff, MD
Contributor

William Renthal, MD, PhD
Contributor

Jenette Restivo
Health Writer; Assistant Director for Digital Content Creation and Engagement, Harvard Health Publishing

Kathryn Rexrode, MD, MPH
Contributor

Kathryn Rexrode, MD, MPH
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