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The smell of death can trigger fight or flight in humans

 The smell of death can trigger fight or flight in humans  Death, Recently  Comments Off on The smell of death can trigger fight or flight in humans
Oct 202015
 

New research from a team led by a psychologist at the University of Kent suggests that humans, like other species, can perceive certain scents as threatening. Dr Arnaud Wisman, of the University’s School of Psychology, found that putrescine, the chemical produced by decaying tissue of dead bodies, can produce a fight-or-flight response in humans. In

How the brain controls sleep

 How the brain controls sleep  Brain, Recently, Sleep  Comments Off on How the brain controls sleep
Oct 202015
 

Sleep is usually considered an all-or-nothing state: The brain is either entirely awake or entirely asleep. However, MIT neuroscientists have discovered a brain circuit that can trigger small regions of the brain to fall asleep or become less alert, while the rest of the brain remains awake. This circuit originates in a brain structure known

Oct 202015
 

UCLA geochemists have found evidence that life likely existed on Earth at least 4.1 billion years ago — 300 million years earlier than previous research suggested. The discovery indicates that life may have begun shortly after the planet formed 4.54 billion years ago.

Oct 092015
 

In the tumultuous real estate market of the 2000s, some U.S. homebuyers found wealth while others took big hits. But no matter when they bought, most black first-time homeowners lost money, a Johns Hopkins University study found. In a study published in the journal Real Estate Economics, public policy professor Sandra J. Newman and researcher

Breaking the anxiety cycle

 Breaking the anxiety cycle  Recently  Comments Off on Breaking the anxiety cycle
Oct 082015
 

A woman who won’t drive long distances because she has panic attacks in the car. A man who has contamination fears so intense he cannot bring himself to use public bathrooms. A woman who can’t go to church because she fears enclosed spaces. All of these people have two things in common: they have an

Oct 082015
 

Gliomas are aggressive brain tumors arising from the brain’s supporting glial cells. They account for about a third of all brain tumors, and hold the highest incidence and mortality rate among primary brain cancer patients, creating an urgent need for effective treatments. Certain antidepressants already in the market could lower the risk of gliomas, but

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