Blood Tests Diagnose Depression? New blood tests to diagnose depression may lead to better treatment and less stigma. Diagnosing teenage depression the way it’s done now — by letting teens take the Beck Depression Inventory (BDI) and asking them to describe their own symptoms, and then relying on psychiatrists to interprete these — can be tricky since mood swings are normal during the adolescent years.

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Celebrities With Alzheimers: US President Ronald Reagan. Like 30 million mostly elderly people in the world, former United States President Ronald Reagan suffered dementia from Alzheimer’s disease. But now scientists have unlocked — at least in part — how the brain encodes memories, leading to hopes that a cure for the memory and learning loss brought by the neurodegenerative disease may soon be found.

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Is PTSD Linked to Violence? What’s an Effective Cure for PTSD? The case against a United States soldier who is accused of going on a shooting rampage earlier this month in two Afghan villages that left women and children dead has focused global attention on post-traumatic stress disorder (PTSD) and other “invisible wounds of war” and of traumatic events like rape.

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