Why testosterone levels drop and when to consider treatment
Don't count on daily aspirin to prevent colon cancer
Night owls' habits linked to worse heart health
After ablation, exercise may lower atrial fibrillation recurrence
What can cause an enlarged heart?
Women's unique risks for heart disease
Chronic kidney disease: A hidden threat to your heart
Navigating your online patient portal: Best practices
Treating hair loss in men: What works?
Virtual cardiac rehab: Heal your heart from home
Harvard Health Experts and Contributors
List of Experts
Jeffrey Ecker, MD
Contributing Editor
Nolan Edwards, DPT, CSCS
Contributor
Robert R. Edwards, Ph.D.
Contributing Editor
Andrew Eidelberg, MD
Contributor
David J. Einstein, MD
Contributor
Todd Ellerin, MD
Contributor
Lisa Ellis
Executive Editor, Online Special Health Reports
Rachel Reiff Ellis
Health Writer
Lauren Elson, MD
Contributor; Editorial Advisory Board Member, Harvard Health Publishing
Lawrence Epstein, MD
Contributor
Katharine Esselen, MD
Contributor
Christopher Estiverne, MD
Contributor
Why testosterone levels drop and when to consider treatment
Don't count on daily aspirin to prevent colon cancer
Night owls' habits linked to worse heart health
After ablation, exercise may lower atrial fibrillation recurrence
What can cause an enlarged heart?
Women's unique risks for heart disease
Chronic kidney disease: A hidden threat to your heart
Navigating your online patient portal: Best practices
Treating hair loss in men: What works?
Virtual cardiac rehab: Heal your heart from home