Sleeping on their left sides keeps the right side of cats' brains alert and ready to detect immediate threats, scientists say. Reading time 3 minutes If you’re a cat owner, chances are you spend an ...

The left and right cerebral hemispheres are colloquially referred to as "left brain-right brain." The cerebral cortex (Latin for "bark") that encases each hemisphere contains a layer of gray matter ...

Frequent exercise doesn't just strengthen the heart—it also changes the nerves that control it, according to new research which could guide more targeted and effective care for common heart problems.