Inverting the leg every day can improve the blood supply to the brain and reduce swelling, as follows: 1. Improve the blood supply to the brain: When inverting the leg, blood will flow from the foot to the body part due to the inversion of gravity, which can improve the blood supply to the brain for patients with cerebral ischemia, but the time of inversion should not be too long, otherwise it will cause serious discomfort. 2. Reduce swelling: If patients with lower limb vascular Diseases, such as varicose veins in the lower extremities often appear swollen ankles and calves, through inversion, blood can flow to the proximal end according to its own gravity, which can reduce the swelling of the limbs and reduce the swelling pain in the lower extremities. However, the inversion must be carried out every day in a moderate manner and not for too long, otherwise it will easily cause uncomfortable reactions and even vertigo.