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Donald Trump appears to be exhibiting many of the outward characteristics of Narcissistic Personalty Disorder (NPD). NPD is a defect in oneâs personality that manifests as an excessive mental preoccupation with oneself â usually to the detriment of everyone else.
Seasonal affective disorder (SAD), also called winter depression, winter blues, summer depression, and seasonal depression, is a mood disorder subset in which people who have normal mental health throughout most of the year exhibit depressive symptoms at the same time each year, most commonly in the winter.[1][2]