This is how unmotivated fears are born in the brain - Biotech. Researchers at the University of California in San Diego have reconstructed the origin of these unmotivation fears caused by stress.

They have also figured out how to block them. The result will allow the development of effective and specific therapies for conditions such as post-traumatic stress disorder, which often leads to intense feelings of fear even in non-dangerous situations. It was sufficient to turn off the gene responsible for the production of Gaba in mice, or to administer Prozac, an anti-depressant drug.