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Lack of hydration during exercise is a well known cause of headache and nausea. [2] Exercising at a heavy rate causes blood flow to be taken away from the stomach, causing nausea. [3] Another possible cause of exercise induced nausea is overhydration. Drinking too much water before, during, or after extreme exercise (such as a marathon) can ...
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 ...
Central nervous system fatigue is a key component in preventing peripheral muscle injury. [28] The brain has numerous receptors, such as osmoreceptors, to track dehydration, nutrition, and body temperature. With that information as well as peripheral muscle fatigue information, the brain can reduce the quantity of motor commands sent from the ...
There are risk factors that make some people more likely to experience motion sickness. Pre-existing medical conditions, such as benign paroxysmal positional vertigo (BPPV) and Parkinson’s ...
Motion sickness occurs due to a difference between actual and expected motion. [1][2][4] Symptoms commonly include nausea, vomiting, cold sweat, headache, dizziness, tiredness, loss of appetite, and increased salivation. [1][5] Complications may rarely include dehydration, electrolyte problems, or a lower esophageal tear.
Lightheadedness is a common and typically unpleasant sensation of dizziness [1] or a feeling that one may faint. The sensation of lightheadedness can be short-lived, prolonged, or, rarely, recurring. In addition to dizziness, the individual may feel as though their head is weightless. The individual may also feel as though the room is "spinning ...
This causes a left shift in the O 2 –Hb curve. It can be congenital or caused by medications, food additives or toxins, including chloroquine, benzene, nitrites, benzocaine. [7] Histotoxic hypoxia (Dysoxia) [8] or Cellular hypoxia occurs when the cells of the affected tissues are unable to use oxygen provided by normally oxygenated hemoglobin ...
Exercise intolerance. Exercise intolerance is a condition of inability or decreased ability to perform physical exercise at the normally expected level or duration for people of that age, size, sex, and muscle mass. [ 1 ] It also includes experiences of unusually severe post-exercise pain, fatigue, nausea, vomiting or other negative effects.