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

Heart diseases are rising due to unhealthy lifestyles, stress, poor diet, inactivity, and smoking. Adopting healthy habits ...

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

Reduced blood flow to the brain is thought to be a key factor in many forms of dementia, including Alzheimer's, and ...

"What is good for the heart is good for the brain," one researcher says.

Many people think that snoring is just a normal part of sleep. But for some, it can be a sign of a serious and often ignored ...

Bird retinas survive without oxygen by burning sugar scientists solve 300 year mystery that could help treat human strokes.

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

In breast cancer, a biopsy is the only diagnostic procedure that can determine if a suspicious lump or area is cancerous. However, in the U.S., between 75% and 80% of breast biopsies are benign.

Numerous studies have shown COVID infection ups the risk of heart problems, including heart attacks, strokes, damage to the ...

For Shi, a Shaanxi Normal University graduate who has taught English at Lhasa Middle School for nearly 14 years, this ...