Latest Orexin Stories
Falling asleep involuntarily during the day poses a very real and dangerous problem, Canadian researchers said.
Lack of sleep is a common complaint but for many, falling asleep involuntarily during the day poses a very real and dangerous problem.
Mice with increased levels of a natural brain chemical don't gain weight when fed a high-fat diet, researchers at UT Southwestern Medical Center have found.
Researchers have uncovered information that may lead to a new medical treatment for nicotine addiction.
By Amy Norton NEW YORK (Reuters Health) - The body's sensitivity to a particular brain chemical may help separate those of us who can't sit still from those who can't seem to get off the couch, a study in rats suggests.
Experiments in rats have linked the craving for cocaine to a specific molecule that appears to train the brain to crave the drug.
Researchers at the University of Pennsylvania School of Medicine have discovered that the recently identified neurotransmitter orexin (also known as hypocretin) influences reward processing by activating neurons in the lateral hypothalamus region of the brain. By identifying the relationship between orexin neurons and behaviors associated with reward seeking, drug relapse, and addiction, researchers hope to find new treatments for drug addiction.