Rates of an elusive type of breast cancer are rising in the US more than three times faster than those of all other breast cancers. A doctor explains how to lower your risk.

A study identified five sleep types that could be linked to mental well-being, bedtime habits and brain activity. The findings could help improve clinical treatments.

You may have heard an influencer say you’re infected with worms or parasites and then been promised a “cleanse cure.” Our medical expert debunks these “detoxes.”

TikTok influencers claim the “cortisol cocktail” can reduce stress, boost energy and balance the body’s adrenal function. A physician explains what you should know.

A commission proposed a new definition of obesity focused on how excess fat affects the body, rather than assessing body mass index, that could change clinical care.

Rates of enterovirus D68 infections are rising, and the virus could lead to a rare polio-like condition in children. Dr. Leana Wen tells parents what they need to know.

Covid-19, flu and RSV infections are rising as people plan holiday get-togethers. What precautions should you take against winter viruses? Dr. Leana Wen explains.

A Covid-19 wave could be underway, CDC data shows. What preventive measures make the most sense? And how might all of this impact the return to schools? A CNN expert explains.

After two years of muted celebrations, New Year’s Eve events are back in a big way, even as the US faces a triple threat of RSV, flu and Covid-19. CNN Medical Analyst Dr. Leana Wen shares ways to stay safe if you’re attending social functions.

The FDA issued emergency use authorization Friday for Pfizer’s Covid-19 vaccine for kids 5 to 11, and now CDC Director Dr. Rochelle Walensky has approved the CDC’s recommendation of the vaccine for the age group. CNN’s Dr. Leana Wen answers questions about the vaccine for younger kids.

CNN Medical Analyst Dr. Leana Wen explains what the Johnson & Johnson vaccine pause means, especially for people who have received that vaccine and those who are scheduled to receive it. Dr. Wen – who herself got the J&J dose – weighs in on what you should look out for if you recently got it.

CNN Medical Analyst Dr. Leana Wen explains why cases among young people are rising and what precautions we all still need to take and why.

The CDC in mid-February released guidelines for a safe return to school, and now the Biden administration has also prioritized vaccination for teachers and school staff. As more schools offer options for in-classroom instruction, CNN’s Dr. Leana Wen helps parents navigate this decision.

CNN Medical Analyst Dr. Leana Wen shares how you can address misconceptions about the Covid-19 vaccine when you hear them from friends and neighbors. Dispel myths with these facts.

Despite warnings from public health officials, millions of Americans traveled over the Christmas holiday. CNN Medical Analyst Dr. Leana Wen explains how people can still take precautions to keep themselves safe and quarantine to reduce the spread of Covid-19 in their communities.