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The biology of depression is the attempt to identify a biochemical origin of depression, as opposed to theories that emphasize psychological or situational causes. Scientific studies have found that different brain areas show altered activity in humans with major depressive disorder (MDD) . [ 1 ]
Central nervous system (CNS) depression is a physiological state that can result in a decreased rate of breathing, decreased heart rate, and loss of consciousness, possibly leading to coma or death. It is the result of inhibited or suppressed brain activity .
Mapping depression in the brain. ... “Depression is a lot of different things with a lot of different causes, biological changes and treatments,” said Dr. Richard Keefe, professor emeritus of ...
[12] [13] [14] One interpretation is that depression manifests due to an imbalance of neurotransmitters in the brain, resulting in feelings of worthlessness and despair. Magnetic resonance imaging shows that the brains of people diagnosed with depression may have a hippocampus up to 10% smaller than those who do not exhibit signs of depression.
Learn how depression can show up in your body, not just in your brain. Watch for these physical signs of depression.
Nightmares and changes in vision can both be early warning signs of dementia. ... Depression. A sudden onset of depression later in life can also be a warning sign of dementia, according to the ...
The mechanism of action of zolmitriptan is to block pain signals by constricting blood vessels in the brain that cause migraines. [40] In addition to affecting blood vessel constriction, Zolmitriptan indirectly eases depression associated with pseudodementia since it is a selective serotonin receptor agonist. [41]
[2] [4] As depression is also associated with pro-inflammatory responses, the suggestion is that the causes of depression are little different from the causes of the autoimmune diseases it is largely co-morbid with, with sanitary environments increasing the risk of excessive inflammation in response to psychosocial stressors just as it is ...
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