American scientists claim that timid and shy people have a higher risk of acquiring a heart attack.
The observation of the researchers, which lasted thirty years, has been two thousand volunteers. During this time died 60 percent of study participants. Based on the analysis of various factors revealed that the death of shy people from heart attacks occurred more often at 50 percent, than those who were confident. The trend has not changed even after the exclusion of scientists, all other risk factors - Smoking, obesity, age, alcohol abuse.
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The explanation for this factor, scientists are finding more stress susceptibility shy people. In addition, researchers believe that the brain areas responsible for the work of the heart depends on the nature of man.