CNN Health

This year was full of moments that remind us why we look at the stars and dig into the past.

Find out how to prevent a hangover — or at least keep that morning-after misery to a minimum. Experts say there is only one true preventive — or cure — for a hangover: Don't drink.

Stunning meteor showers, full moons and eclipses will light up the sky in 2023.

Seasonal flu activity remains high in the United States but continued to decline in most areas last week, leading up to Christmas, according to data published Friday by the US Centers for Disease Control and Prevention. The numbers do not include flu activity from after the holiday.

Your phone doesn't even need to ping to distract you. There's good evidence the mere presence of it is enough to divert your attention. So what's going on? More importantly, how can you reclaim your focus without missing the important stuff?

The expertise and availability of coroners, who determine cause of death in criminal and unexplained cases, varies widely across the country.

As the world enters a new year, many public health and infectious disease experts predict that monitoring for new coronavirus variants will be an increasingly important part of Covid-19 mitigation efforts -- and some are turning their attention to a surge in cases in China.

The tree of life grew in 2022 as California Academy of Sciences researchers and their international collaborators discovered 146 new animal, plant and fungi species.

A congressional investigation found that the US Food and Drug Administration's "atypical collaboration" to approve a high-priced Alzheimer's drug was "rife with irregularities."

The number of people under age 20 with type 2 diabetes in the US may increase nearly 675% by 2060 if trends continue, researchers say, with an increase of up to 65% in young people with type 1 diabetes.

Bakers may swoon at the thought of being able to crank out elaborate sweets and candies over the holidays, but food writer Casey Barber maintains there's one dessert that's perfect for this time of year. And that's ice cream.

Sesame will be included in the list of major food allergens and subject to food allergen regulatory requirements, starting January 1. Here's what will change.

Early this year, even before the national shortage of infant formula or a demand-driven shortfall of pain medications for kids, children's hospitals began to worry about looming shortages of two critical medications for premature infants: sodium chloride and potassium chloride.

Mars may seem like a dry, desolate place, but the red planet transforms into an otherworldly wonderland in winter, according to a new video shared by NASA.

Of the wellness practices that populated TikTok this year, here's what we should leave in 2022 or could take with us into the new year, according to experts.

Experts say there will likely be a post-holiday bump in respiratory virus numbers, and that could put an even greater strain on supplies of some medications that have been hard to find amid a severe illness season.

Every winter, millions of Americans end the year with tighter waistbands, leading to another annual ritual: the New Year's pledge to lose weight. Nearly 1 in 4 Americans vowed to live healthier in 2022, making it the number one New Year's resolution.

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.

Emergency department visits and revisits in children's hospitals that are related to mental health are "increasing rapidly," a new study suggests.

There is growing concern among infectious disease and public health experts that the US could face even more respiratory infections in January.