It's estimated that 5 to 10 million Americans have bipolar disorder. But what do we really know about the condition?

Some scientists and government agencies are concerned over the test’s impact on animals, and whether it is still useful for research.

A program matches unrepresented patients with volunteers who can make care decisions for them during health care crises.

Elon Musk wants to cut funding for scientific research, but the weight loss drugs he promoted also came from government funded basic science.

Psychologist David Maloney, author of "Procrastination Decoded," shares his personal journey and methods for breaking the procrastination habit.

Started by a patient, HealthTree lets blood cancer patients look for clinical trials and treatment options, as well as share their data with researchers.

Anti-fluoridation activists gain powerful allies in Robert F. Kennedy Jr. and a court win against the EPA, to the dismay of public health leaders.

Two strangers connect on a video chat website and instantly feel an undeniable bond, but there is one huge problem: Neither of them is single.

Experts say the app could lead to new insights on relationships, as well as help students cope with the anxiety of dating.

Logan Ury discusses the science behind dating, how to make meaningful connections online, and how to avoid common pitfalls.

Scientists found their work under threat during the first Trump administration. This time, they have contracts to protect them.

An alarming study on black plastic had a major math error. But it reveals bigger questions that have yet to be addressed.

A Norfolk Southern train derailment in East Palestine, Ohio, spilled chemicals, sickening residents. Now researchers are tracking the long-term health effects.

Computer models helped decode whale communication. But some scientists say there are barriers that cannot be overcome.

Philadelphia’s first female battalion chief, Linda Long, retired in 2023 after being diagnosed with brain cancer. She thinks it’s linked to years of toxic exposures.