an article by Philip Perry for the Big Think blog
Anxiety disorders are common and may be growing more so. 40 million US adults suffer from one in some form, about 18% of the population. Worldwide, 260 million live with an anxiety disorder, according to the WHO. Economist Seth Stephens-Davidowitz reported in 2016 that anxiety disorders have doubled in the US since 2008. There are a number of different kinds. There’s general anxiety disorder, panic disorder, social anxiety, and of course, a near countless number of phobias.
Although common, physicians aren’t sure what exactly brings on such a disorder. They usually hit a person in the prime of their life, and the treatments we have now are generally, only partially effective. Medical researchers hypothesize that it’s a combination of genes, environmental conditions, and changes inside the brain that lead to such a disorder.
Anxiety often runs in families and epigenetic markers for it have been identified. Epigenetics is the system by which genes are marked to become either expressed or suppressed. A recent study found that epigenetic changes associated with anxiety that occurred in holocaust victims, were passed down to their children.
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