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Orthostatic intolerance occurs in humans because standing upright is a fundamental stressor, so requires rapid and effective circulatory and neurologic compensations to maintain blood pressure, cerebral blood flow, and consciousness. When a human stands, about 750 ml of thoracic blood are abruptly translocated downward.
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 ...
A woman with a thigh gap. A thigh gap is a space between the inner thighs of some women when standing upright with knees touching. [1]In the 21st century, some people in the West have begun to consider the thigh gap a special feature of physical attractiveness and physical fitness in women.
The 70-year-old, who stood at 5-foot-3, weighed 200 pounds after years of mindless snacking and was on blood-pressure medication. MacDonald told Business Insider she bowled and played darts and ...
Orthostatic hypertension is diagnosed by a rise in systolic BP of 20 mmHg or more when standing. Orthostatic diastolic hypertension is a condition in which the diastolic BP raises to 98 mmHg or over in response to standing, [ 2 ] [ 3 ] [ 4 ] but this definition currently lacks clear medical consensus, so is subject to change.
After having a brief medical scare at Polar Park last August, Red Sox Hall of Famer Bill Lee made his return to the home of the WooSox on Thursday.
As a San Antonio, Texas-based swimming coach, 65-year-old Ingraham continues to crush her personal goals. She says that at 63, she swam in a four-day staged open water swim, without a wetsuit, in ...
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