Risk-taking, by definition, defies logic. Reason can't explain why people do unpredictable things — like betting on blackjack or jumping out of planes — for little or, sometimes, no reward at all. There's the thrill, of course, but those brief moments of ecstasy aren't enough to keep most risk takers coming back for more — which they do, again and again, like addicts.A new study by maple story mesos
researchers at Vanderbilt University in Nashville and Albert Einstein college of Medicine in New York City suggests a biological explanation for why certain people tend to live life on the edge — it involves the neurotransmitter dopamine, the brain's feel-good chemical.Dopamine is responsible wow power leveling
for making us feel satisfied after a filling meal, happy when our favorite football team wins, or really happy when we use stimulating drugs like amphetamines or cocaine, which can artificially squeeze more dopamine out of the nerve cells in our brain. It's also responsible for the high we feel when we do something daring, like skiing down a double black diamond slope or skydiving out of a plane. In the risk taker's brain, researchers wow power leveling
report in the Journal of Neuroscience, there appear to be fewer dopamine-inhibiting receptors — meaning that daredevils' brains are more saturated with the chemical, predisposing them to keep taking risks and chasing the next high: driving too fast, drinking too much, overspending or even taking drugs.David Zald, a professor archlord gold
of psychology and psychiatry at Vanderbilt, studied whether the brains of those thrill seekers differed in any way from those of the less adventuresome when it comes to dopamine. He gave 34 men and women a questionnaire to assess their novelty-seeking tendencies, then scanned their brains using a technique called positron emission tomography to figure out how many dopamine receptors buy archlord gold
the participants had. Zald and his team were on the lookout for a particular dopamine-regulating receptor, which monitors levels of the neurotransmitter and signals brain cells to stop churning it out when there's enough.