Pulse oximeters use light to measure how much oxygen is in a person’s blood. For most people, a normal pulse oximeter reading is between 95% and 100%, researchers said in background notes. Readings ...

Neural tissue normally dies quickly without oxygen. Yet bird retinas—among the most energy-demanding tissues in the animal ...

The discovery fundamentally changes the understanding of a structure in the avian eye that has been misinterpreted for centuries.

Learn more about the 2004 murder of 19-year-old Courtney Coco and the surprising suspect convicted of her murder.

By analyzing brain activity in mice, they determined that a fat molecule called PIP2 acts as a brake on Piezo1. When brain ...

Largest study on this topic suggests that measurement errors lead to potential delays in care and contribute to health ...

Have you heard of Dry January? It’s a pledge not to drink alcohol for at least a month, a sign of your resolve to change your ...

A new study explains why current brain theories fail to fully explain near-death experiences and consciousness.

Carbon monoxide poisoning remains a serious and often overlooked danger, especially during the colder months when heaters, ...

When you’re short on sleep and your focus suddenly drifts, your brain may be briefly slipping into cleanup mode. Scientists ...

The Buffalo Bills have been preparing for the altitude in Denver prior to their playoff game against the Broncos.