Generally speaking, as long as the elderly do not have blocked blood vessels and their symptoms, they do not need to use drugs or other special measures to unblock the blood vessels. However, you can prevent blood vessel blockage in daily life through diet and exercise to ensure the smooth flow of blood vessels.1. Diet: low-fat, low-calorie and low-salt diet. Appropriate single reduce the amount of diet, avoid large fish, meat and other high heat and high fat food, more fresh vegetables, fruits, staple foods can eat more coarse grains and other foods with high fiber content, more nuts and other rich dietary structure. 2, moderate exercise: exercise can provide sufficient vitality for blood circulation, help maintain smooth blood vessels, for the prevention of arteriosclerosis, reduce blood lipids has a very good effect. Generally, the elderly can choose the slower pace of aerobic exercise, such as walking, tai chi, etc., can not blindly pursue the amount of exercise for too much intensity of the activity.