CNN Health

Letting infants watch tablets and TV may be impairing their academic achievement and emotional well-being later on, according to a new study.

On the Galapagos Islands, a ground finch that usually munched on small, soft seeds was forced, during a drought, to eat harder, larger ones.

As a NASA orbiter turned its camera to the Martian surface, the face of a bear seemed to be looking back.

Covid-19 has become the eighth most common cause of death among children in the United States, according to a study published Monday.

Being impulsive and engaging in risky behavior -- does that describe your teen or an adolescent chimpanzee? Maybe both, according to a new study.

A new paper adds to the mounting evidence that school-age children across the globe experienced significant setbacks in their learning progress during the Covid-19 pandemic.

Covid-19 remains a global health emergency, the World Health Organization said on Monday, but it acknowledged the pandemic is at a "transition point."

US Surgeon General Vivek Murthy says he believes 13 is too young for children to be on social media platforms, because although sites allow children of that age to join, kids are still "developing their identity."

"Blue zones" are places around the world where people often live to be 100 or even older. One key to this longevity is a plant-based "blue zone diet". "Blue Zones" author Dan Buettner showcases such places in the US in his his cookbook.

Sometime this spring, NASA will make one of the biggest announcements in its history when it names the initial four-person crew for its flagship Artemis program to return astronauts to the moon for the first time in 50 years.

Weight loss surgery reduces the risk of premature death, especially from such obesity-related conditions as cancer, diabetes and heart disease, according to a new 40-year study of nearly 22,000 people who had bariatric surgery in Utah.

It's no surprise to new parent Dr. Neha Chaudhary that a new study found that sleep disorders in parents and children cause parental stress. Here's what she advises you do next.

The mortality rate of pregnant and recently pregnant women in the United States rose almost 30% between 2019 and 2020, according to a new study.

The US Food and Drug Administration is proposing a blood donation policy that focuses on individual risk instead of blanket assessments, the agency said Friday -- opening donation to more gay and bisexual men.

Strength and conditioning coach Dana Santas shows you how you can effectively train your entire body using a single dumbbell in 10 minutes. Here are five exercises to strengthen your legs, hips, arms, shoulders and core.

Video of the violent arrest of Tyre Nichols, which officials released Friday, will be difficult to watch -- but it may also be hard to avoid. Some people might even feel duty-bound to watch it as a way to pay tribute to Nichols, who died three days after the confrontation with officers.

The US Food and Drug Administration on Thursday halted the emergency use authorization of Evusheld because it does not appear to protect against Covid-19 from viral variants currently circulating in the United States.

CBD products will require a new regulatory pathway, the US Food and Drug Administration said Thursday, and the agency plans to work with Congress to develop a strategy.

An asteroid the size of a box truck made one of the closest passes of planet Earth ever recorded.

Covid-19 has unmasked many existing crises and amplified them for the world to see, writes Dr. Leana Wen. The coronavirus didn't create health disparities — these long-predated the virus — but exacerbated existing ones.