Katia Hetter

As cases of whooping cough rise, CNN wellness expert Dr. Leana Wen explains what causes the respiratory illness, how it spreads and what to do to protect yourself.

Three states have legalized over-the-counter sales of ivermectin, but people should only take it for approved uses with guidance from physicians, Dr. Leana Wen says.

Many people aren’t benefiting from the shingles vaccine now. Not only can it prevent shingles — it also may protect the brain and cut the risk of having dementia.

Many people aren’t benefiting from the shingles vaccine now. Not only can it prevent shingles — it also may protect the brain and cut the risk of having dementia.

Heavy drinkers had a 133% higher chance of having brain lesions compared with nondrinkers, a study found. A medical expert explains how much alcohol is too much.

Heavy drinkers had a 133% higher chance of having brain lesions compared with nondrinkers, a study found. A medical expert explains how much alcohol is too much.

Eating healthy in midlife is linked with being disease-free at age 70, a new study finds. Dr. Leana Wen explains which diets could help pave a path to healthy aging.

Eating healthy in midlife is linked with being disease-free at age 70, a new study finds. Dr. Leana Wen explains which diets could help pave a path to healthy aging.

The use of AI applications in medical care is growing. Dr. Leana Wen explains the uses of AI that could improve care — and the reasons for continued caution.

The use of AI applications in medical care is growing. Dr. Leana Wen explains the uses of AI that could improve care — and the reasons for continued caution.

More than 150,000 Americans could get diagnosed with colorectal cancer this year, but lifestyle changes can lower your risk, and testing can catch it early.

More than 150,000 Americans could get diagnosed with colorectal cancer this year, but lifestyle changes can lower your risk, and testing can catch it early.

Healthy food is important for children, but what they drink also matters. Dr. Leana Wen explains what health and nutrition groups advise your kids to drink and how much.

Healthy food is important for children, but what they drink also matters. Dr. Leana Wen explains what health and nutrition groups advise your kids to drink and how much.

It’s OK if you haven’t gone to sleep and gotten up earlier to prepare for Daylight Saving Time. Here’s how you can still adapt.

It’s OK if you haven’t gone to sleep and gotten up earlier to prepare for Daylight Saving Time. Here’s how you can still adapt.

You can’t always know when you’ll have to go to the ER, but there are things you can stop doing to keep safe, according to emergency physician Dr. Leana Wen.

You can’t always know when you’ll have to go to the ER, but there are things you can stop doing to keep safe, according to emergency physician Dr. Leana Wen.

CNN wellness expert Dr. Leana Wen recommends five things to do to stay healthy and avoid having to rely on the emergency room.

CNN wellness expert Dr. Leana Wen recommends five things to do to stay healthy and avoid having to rely on the emergency room.