Many people experience dizziness and vertigo during a workout, which is due to the fact that a workout can lead to an increased exercise load, which activates the sympathetic nerves and causes sympathetic arousal. Sympathetic excitation will cause the adrenal glands to secrete a variety of catecholamines, including epinephrine, norepinephrine and dopamine, these vasoactive substances will lead to vasoconstriction, increased heart rate, increased blood pressure, and increased blood pressure will cause dizziness, dizziness symptoms. A large number of sports will lead to rapid energy consumption, if not timely replenishment of energy will lead to insufficient energy, severe hypoglycemia symptoms caused by dizziness, dizziness. Not only that, fitness will also lead to a lot of sweating, sweating caused by excessive blood volume, will also lead to dizziness, dizziness symptoms.