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‘Runner’s High’ Played a Role in Human Evolution

Aerobic exercise triggers a reward system in the body of long-distance running creatures like humans and dogs, but not ferrets, a study led by UA anthropologist David Raichlen suggests.

In the last century, something unexpected happened: Humans became sedentary. We traded in our active lifestyles for a more immobile existence.

But these were not the conditions under which we evolved – our hunter-gatherer predecessors were long-distance endurance athletes. (more…)

Nicotine May Play Key Role in Promising Alzheimer’s Therapy

By Guest PostOctober 13, 2010Health, Sciencea-beta, alpha7 nicotinic acetylcholine receptor, alpha7 receptor, alzheimer, angela lee, bace-1 knockouts, bace1, brain nicotine receptors, calcium uptake, disease, enzyme, fiona laird, hey kyoung lee, hui wang, lihua song, neurological disorder, neurons, neuroscientists, neurotransmitters, nicotine, normal brain function, peptide, philip c wong, schizophrenia, sixth-leading cause of death, united states, university of maryland

COLLEGE PARK, Md. — A team of neuroscientists has discovered important new information in the search for an effective treatment for Alzheimer’s disease, the debilitating neurological disorder that afflicts more than 5.3 million Americans and is the sixth-leading cause of death in the United States. Hey-Kyoung Lee , associate professor in the University of Maryland Department of Biology, and her research team have shown that they may be able to eliminate debilitating side effects caused by a promising Alzheimer’s drug by stimulating the brain’s nicotine receptors. (more…)

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‘Runner’s High’ Played a Role in Human Evolution

Nicotine May Play Key Role in Promising Alzheimer’s Therapy