President Biden has set his sights on more than 100 Trump administration environmental rollbacks as well as plans to rejoin the international climate accord.
Lou Gehrig's disease can take months to diagnose, then rapidly incapacitate patients, leaving many families bankrupt before disability payments and Medicare kick in. A recent law aims to change that.
Elizabeth Blackwell was the first woman in America to earn her medical degree. Her sister Emily followed in her footsteps. Janice Nimura tells the story of the "complicated, prickly" trailblazers.
Overwhelmed sewers. Flooded streets. Deadly heat waves. Baltimore is one of many American cities where the costs of climate change far exceed local resources. Should oil companies pay?
Two new studies show the potential of personalized brain stimulation to treat psychiatric disorders. The approach delivers pulses of electric or magnetic energy to certain areas in the brain.
The test was for NASA's Space Launch System, a successor to the retired Space Shuttle program. It takes eight minutes to generate the power needed to get to space, and ultimately to the moon.
As states suddenly expand the categories of people eligible for the first scarce shipments of vaccine, who will be watching to make sure those hit hardest by the pandemic aren't left behind?
The change means that doctors will no longer need a special federal waiver in order to prescribe buprenorphine, a medication to treat opioid use disorder.
Each day, we breathe about 22,000 times--and all that time we smell. Scent historian Caro Verbeek recreates scents of the past. She says, just like music and art, smell is a part of our heritage.
Starting Jan. 26, airlines will only allow people to board if they provide documentation that they tested negative in the preceding three days or have recovered from the disease.
It takes time after vaccination for immunity to the virus to build up, and no vaccine is 100% effective. Plus, scientists don't yet know if the vaccine stops viral spread. Here's what's known so far.
Gorillas at the San Diego Zoo Safari Park developed a cough last week. The apes were tested and found to have the virus. It may have come through a human staffer, despite precautions.
The House speaker told colleagues she had spoken with the chairman of the Joint Chiefs of Staff about keeping the nuclear codes from an "unhinged President."
Studies based on private health data are crucial to understanding dangers posed by pollution. A new rule makes it harder for the EPA to consider many studies when setting safeguards.
CNN's chief medical correspondent says it's never too late to develop new brain pathways. Even small changes, like switching up the hand you use to hold your fork, can help optimize brain health.
Boston Children's Hospital saw a precipitous drop in cases during the spring shutdown, and the trend continues. Researchers are asking why — and what it would take to keep up the change post-pandemic.
Health care workers are bracing for a deadly January, and President-elect Joe Biden cautioned that "the next few weeks and months are going to be very tough."
The rollout of vaccines for COVID-19 has been slower than expected. Reasons include local logistics, lack of funding and staffing struggles during the winter holidays.
The volcano on Hawaii's Big Island began erupting more than a week ago and lava continues to flow, creating a huge new lake that's taken the place of a water lake it vaporized.
Leaders of the nation's federal vaccine effort, called Operation Warp Speed, said the U.S. has deployed around 14 million vaccine doses as of Wednesday with just 2.1 million Americans vaccinated.
