Saturday, July 04, 2015

Can negative thinking make you sick?

By now, the mind-body connection is a familiar idea. Most people are aware, for example, that stress can produce physical symptoms like an upset stomach, or that depression often physically hurts. But a growing body of research suggests that negative emotions and thoughts may also have links to other serious health problems, like heart disease.

“Many negative emotions such as anger, fear, and frustration become problematic when those emotions turn into a more permanent disposition or a habitual outlook on the world,” explains Emiliana Simon-Thomas, PhD, science director of the Greater Good Science Center at UC Berkeley.

Take cynicism, for example: A 2014 study published in the journal Neurology linked high levels of cynicism later in life, i.e. a general distrust of people (and their motives), to a greater risk of dementia compared to those who were more trusting, even after accounting for other risk factors like age, sex, certain heart health markers, smoking status, and more.

This way of thinking may also hurt your heart. A 2009 study from the journal Circulation looked at data from nearly 100,000 women and found that the most cynical participants were more likely to have heart disease than the least cynical folks. The more pessimistic women also had a higher chance of dying over the study period, versus those who were more optimistic about humanity. Full story...

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