Katia Hetter

Fall’s time change can disrupt your body’s internal clock, leaving you tired in the morning and wide awake at night. Dr. Leana Wen explains how to cope.

Hand, foot and mouth disease is on the rise in certain areas. A doctor explains symptoms and treatment

Thousands of people land in the emergency room each year due to Halloween-related injuries. An emergency doctor has easy tips for parents to help keep children safe.

While President Donald Trump is pushing to split the MMR vaccine into three shots, experts say there’s no scientific reason for it, and it could lead to lower vaccination rates.

Missing the first mammogram linked to increased risk of breast cancer death, new study suggests

While dogs are responsible for the majority of human rabies deaths worldwide, contact with infected bats is the leading cause of human rabies deaths in the US.

A common nasal spray may lower the risk of getting Covid-19, a new study shows. Dr. Leana Wen discusses what this all means as coronavirus cases rise.

Healthy children can become very sick from the flu. Here’s what parents should know about the upcoming flu season, according to CNN wellness expert Dr. Leana Wen.

Public awareness about the link between human papillomavirus, or HPV, and cancer is low. A doctor explains why its lifesaving properties matter.

Black box warning on menopause hormone therapies should be removed, experts say