Christine Yu is a freelance writer covering health, fitness, science, and nutrition.
What You Should and Shouldn’t Do if You Have a Positive COVID-19 Antibody Test
What People With Heart Disease and Diabetes Need to Know About Their COVID-19 Risk
Heart and Cardiovascular Conditions
How Exercise Can Help You Deal With Anger — and the Best Workouts to Try
What Is Herd Immunity, Anyway?
Immune System Conditions
Why Fasting Causes Autophagy — and What's the Deal With That, Anyway?
What Really Happens to Your Body When You Eat Refined Sugar
What Is Metabolic Syndrome, Exactly?
Weight and Body Fat
Are Personalized Vitamins Worth the Hype?
Should You Really Be Taking a Pre-Workout Supplement?
2 Million Pounds of Chicken Are Being Recalled — Here's What You Should Know
First Aid and Safety