Health

By Brenda Goodman, CNN (CNN) — Blood testing of large-animal veterinarians suggests that H5N1 bird flu has spread more widely than US surveillance of the virus is capturing, according to a new study by federal and state disease detectives. The study comes as Ohio announced its first human case of H5N1 in a poultry worker

By Deidre McPhillips, CNN (CNN) — Abortion bans in the United States are exacerbating existing health disparities as births increase in high-risk populations and infant mortality rises disproportionately, new research suggests. In 14 states that implemented complete or 6-week abortion bans after the Supreme Court Dobbs decision revoked the federal right to abortion, the fertility

By Katia Hetter, CNN (CNN) — With millions sipping their morning coffee to start the day, recent research has generated new buzz about caffeine consumption. A large UK study from September found that moderate caffeine consumption from coffee or tea reduced the risk of developing multiple cardiometabolic diseases such as heart disease, stroke and diabetes.

By Neha Mukherjee, CNN (CNN) — Measles cases are popping up across the country, especially in areas with lower vaccination rates. There were 285 cases reported in the US last year, the most since 2019, according to the US Centers for Disease Control and Prevention. And cases have already emerged in 2025: Two cases of

By Andrea Kane, CNN Editor’s note: The podcast Chasing Life With Dr. Sanjay Gupta explores the medical science behind some of life’s mysteries big and small. You can listen to episodes here. (CNN) — If you are like many people, you might feel zapped of energy and in need of some motivation to get going,

By Meg Tirrell, CNN (CNN) — For years, people taking Ozempic or other drugs in the same class for diabetes and weight loss have noticed the medicines don’t just curb their desire to eat; for some, they also lead them to drink less alcohol. Now, the first clinical trial – although relatively small and limited

By Sandee LaMotte, CNN (CNN) — A legal loophole is allowing children who access social media to see enticing advertisements for marijuana with potentially dangerous consequences, according to experts. Under the Controlled Substances Act, it’s illegal to advertise the sale or use of marijuana using federal airwaves or across state lines. But that hasn’t stopped

By Neha Mukherjee, CNN (CNN) — The drug supply is constantly evolving, and some experts suggest that a “fourth wave” of the opioid epidemic is underway, in which illicit fentanyl is more frequently mixed with other drugs. New research shows high levels of one unexpected addition: BTMPS, an industrial chemical used as an adhesive in

By Shannon Carpenter, CNN (CNN) — My 11-year-old son knows how he will respond to a school shooting. His plan, which he told me recently after his school’s latest lockdown drill, is to jump out of a window and make a run for it. We sat in my bed for an hour past bedtime, talking

By Rebekah Riess, CNN (CNN) — The Georgia Department of Agriculture has lifted the suspension of poultry activities in Georgia, one of the country’s top poultry-producing states, after bird flu testing, depopulation, cleaning and disinfecting were done in the area and no new cases were found. In January, all poultry exhibitions, shows, swaps, meets and

By Jacqueline Howard, CNN (CNN) — A plan for the US Food and Drug Administration to propose banning formaldehyde and certain formaldehyde-releasing chemicals from being used in hair-straightening products remains in limbo under President Donald Trump. Due to concerns about these chemicals’ links to cancer risks, the FDA under the Biden administration considered proposing a

By Tierney Sneed and Meg Tirrell, CNN (CNN) — A federal judge on Monday paused cuts that the Trump administration had made to funding for public health research, issuing a temporary restraining order that applies only in the 22 Democratic-led states that brought a lawsuit challenging the reduction in funding. US District Judge Angel Kelley

By Sandee LaMotte, CNN (CNN) — Drinking alcohol if you have a large belly or diabetes more than doubles the risk of serious liver damage, while having high blood pressure and drinking nearly doubles the risk, a new study found. Those are important health risks to consider, said Dr. Andrew Freeman, director of cardiovascular prevention

By Brenda Goodman, CNN (CNN) — The newer variant of avian influenza that recently infected dairy cattle in Nevada has a genetic change that’s thought to help the virus copy itself in mammals — including humans — more easily, according to a new technical brief from the US Department of Agriculture’s Animal and Plant Health

By Sofía Sanchez, CNN (CNN) — When Elaine Spaulding met Arthur Aron in class at the University of California, Berkeley, in the late 1960s, she was conflicted. Both were studying social psychology. Elaine was in her final year of undergraduate coursework, and Arthur was just beginning his doctoral program. With a torn T-shirt and long

By Katherine Dillinger, CNN (CNN) — The US National Institutes of Health is lowering the maximum “indirect cost rate” that research institutions can charge the government, the agency said late Friday – a move that scientists said could be devastating for the nation’s position as a research leader. The average NIH grant to an institution

By Deidre McPhillips and Annette Choi, CNN (CNN) — Fentanyl is powerful synthetic opioid that can be up to 100 times more potent than morphine. It can be prescribed in formal medical settings to relieve severe pain and treat breakthrough pain when longer-acting pain medications aren’t enough. Injections may be used during or after surgery,