Long COVID Seems to Make Distinct Changes to The Immune System

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Long COVID Seems to Make Distinct Changes to The Immune System
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Long COVID has more than 200 potential symptoms and can affect almost every organ in the body.

, where a person blows out air while keeping their nose and mouth shut, which usually slows the heart rate down.

They found that people with long COVID were less able to control their heart rate and blood pressure when these physiological pressures were applied. The researchers noted that the skin temperature was also lower in people with long COVID throughout the tilt-table test, suggesting vasoconstriction, where the blood vessels constrict and decrease blood flow to the skin.

While previous studies have suggested that long COVID's neurological symptoms could be due to inflammation in the brain stem and in the brain's olfactory bulb, which receives sensory inputs from the nose, the MRI did not identify any structural abnormalities in either region. More research is needed to make head or tail of all this, but this research does suggest that immunotherapies could be explored as a treatment for long COVID in"The preliminary findings […] call for further investigation and for evaluation of potential immunomodulatory agents in an effort to decrease the huge public health burden of this syndrome," the researchers

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