Squatting down and standing up dizziness is a relatively common phenomenon, mainly caused by the following reasons. First, postural hypotension, mainly due to the squatting blood accumulation in the lower limbs, and then stand up when the blood can not quickly back to the upper part of the torso, including the head is prone to blood pressure drop due to insufficient blood supply, and its will feel dizzy. Second, cerebral atherosclerosis, due to cerebral vascular atherosclerosis, some patients themselves have insufficient blood supply to the brain, while the ability to regulate blood flow to the brain is weakened, squatting down to stand up position changes will cause, and aggravate the transient cerebral insufficiency of blood supply, thus causing dizziness. Third, bad habits, the most common is to stay up late, short sleep, excessive fatigue, mental tension, anxiety patients. Develop good habits, ensure sufficient sleep, and exercise properly can help improve.