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Postural orthostatic tachycardia syndrome (POTS) is a condition characterized by an abnormally large increase in heart rate upon sitting up or standing. [1] POTS is a disorder of the autonomic nervous system that can lead to a variety of symptoms, [10] including lightheadedness, brain fog, blurred vision, weakness, fatigue, headaches, heart palpitations, exercise intolerance, nausea ...
However, when a patient becomes older, von Schwarz noted that blood vessels do not dilate as much so the symptoms can “go away.” He added, “So with advanced ages, we don't see the symptoms.”
Dysautonomia, autonomic failure, or autonomic dysfunction is a condition in which the autonomic nervous system (ANS) does not work properly. This may affect the functioning of the heart, bladder, intestines, sweat glands, pupils, and blood vessels.
Baroreflex and autonomic pathways normally ensure that blood pressure is maintained despite various stimuli, including postural change. The precise mechanism of orthostatic hypertension remains unclear, but alpha-adrenergic activity may be the predominant pathophysiologic mechanism of orthostatic hypertension in elderly hypertensive patients. [5]
A recent study found that features of POTS, such as the change in heart rate or blood pressure when going from laying down to sitting up, can affect the performance of elite swimmers. Why Ledecky ...
Most people 50 and older who use cannabis do so at least once a month, saying it helps them sleep and eases pain, a new survey found. More than 20% of older adults have used pot in the past year ...
Heat intolerance is a symptom characterized by feeling overheated in warm environments or when the surrounding environment's temperature rises. [1] Typically, the person feels uncomfortably hot and sweats excessively.
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