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Birth rates of people who later die by suicide show disproportionate excess for April, May and June compared with the other months. Overall, the risk of suicide increases by 17% for people born in the spring–early summer compared with those born in the autumn–early winter; this risk increase was larger for women (29.6%) than for men (13.7% ...
When a mood disorder recurs in a seasonal pattern it is described as a seasonal affective disorder (SAD). [ 29 ] Pendse, Westrin, and Engstrom’s research on the effect of temperament on seasonal affective disorder and suicide attempts determined that "the suicidal behavior of SAD patients is not a prominent problem, even though SAD patients ...
Inbreeding coefficients of various populations in Europe and Asia. Offspring of biologically related persons are subject to the possible effects of inbreeding, such as congenital birth defects. The chances of such disorders are increased when the biological parents are more closely related.
4.1 Bipolar affective disorder. 4.2 ... genetic disorders that come out due to inbreeding exist in more ... Suicide rates for the Amish of Lancaster County were 5.5 ...
The results may also reflect the known tendency for many people to feel generally less upbeat during the winter months due to seasonal affective disorder, said Dr. Dan Romer, psychologist and ...
Inbreeding depression is the reduced biological fitness that has the potential to result from inbreeding (the breeding of related individuals). The loss of genetic diversity that is seen due to inbreeding, results from small population size. [2] Biological fitness refers to an organism's ability to survive and perpetuate its genetic material.
On the other hand, New Jersey, has the lowest suicide rate with 7.1 deaths per 100,000 people. [11] Rural and urban areas show differences as well. "The suicide rate is nearly twice as great in the most rural areas of the U.S. compared to the most urban areas (18.9 per 100,000 people in rural areas vs. 13.2 per 100,000 people in urban areas)."
Genetic purging is the increased pressure of natural selection against deleterious alleles prompted by inbreeding. [1]Purging occurs because deleterious alleles tend to be recessive, which means that they only express all their harmful effects when they are present in the two copies of the individual (i.e., in homozygosis).