In the quest for a restful night, we often overlook the myriad of sleep disorders that can drastically affect our lives. From the more commonly known conditions like sleep deprivation, restless legs ...

More than 100 years after it was first described, hemineglect—also known as unilateral spatial neglect, or unilateral inattention—is still one of the most fascinating and mysterious of the ...

Discover the mysteries of rare diseases in "25 BIZARRE DISEASES Science Still Can't Explain!" WATCH OUR OTHER VIDEOS: ►25 Weird Facts About The Human Body <a ...

Credit: Getty Images Some rare psychological disorders may occur so infrequently that most mental health professionals might never encounter them. Approximately 1 of every 5 adults in the United ...