Busy tissues need bigger cleanup crews to work at their best
Peer-Reviewed Publication
Updates every hour. Last Updated: 23-Oct-2026 18:16 ET (23-Oct-2026 22:16 GMT/UTC)
The body's heart muscle (for pumping blood), skeletal muscle (for movement and posture), and brown fat (for heat production), each require a lot of energy and make a lot of waste. And that waste needs to be managed.
A new study led by researchers at the University of California, Santa Cruz, has overturned decades of assumptions about Miracinonyx trumani, the extinct predator popularly known as the American "cheetah.” By analyzing nuclear paleogenomes and stable isotopes from fossils found as far north as the Yukon, scientists have discovered that this iconic cat was not a true cheetah, but a highly adaptable relative of the puma that specialized in eating fish to survive the Arctic.
Emergency visits by children with suicide-related crises increased by 74% between 2016 and 2022, according to a new study from scientists at Northwestern University and Ann & Robert H. Lurie Children’s Hospital of Chicago.
The study represented more than 5 million emergency department (ED) visits for mental health concerns by U.S. children in the six-year period. About half of suicide-related ED visits — and half of all children’s mental health ED visits — occurred in hospitals with lower pediatric volume (under 10,000 annually). A child experiencing a mental health crisis may arrive at any emergency department, and many are not prepared to care for children with acute mental health needs, the study authors said.
Albert Arias, MD, chief of addiction psychiatry at Carilion Clinic, has received an award from the National Institute on Drug Abuse (NIDA) to research how psilocybin, a psychedelic compound being studied for several psychiatric and substance use disorders, can offer a new approach for people with cocaine use disorder.