Some diseases (like Lynch syndrome) have high penetrance and familial history (and cause rapid and profuse development of intestinal polyps by the age of 50), while others, (like metabolic syndrome, a combination of high blood sugar, high blood pressure, abnormal cholesterol levels, and excess body fat around waist), rely more strongly on environmental influences. Joy DeGruy coined the theory Post Traumatic Slave Syndrome (PTSS) and defines it as, “a condition that exists when a population has experienced multigenerational trauma resulting from centuries of slavery and continues to experience oppression and institutionalized racism today.” 1 Is it possible that trauma can be passed down generations? Many diseases are known to have a strong genetic component.
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