Weight loss can play a role in lowering blood pressure, but it is mainly effective for first-degree hypertension and does not play a decisive role. Obesity itself and high blood pressure have a close link, obese people are relatively speaking, the chances of suffering from high blood pressure will be higher, so for obese people with high blood pressure, through weight loss to maintain a healthy lifestyle, is conducive to lowering blood pressure, and applies to first-degree hypertension, blood pressure is only mildly elevated, through weight loss and with the improvement of lifestyle, such as low-salt and low-fat diets, early to bed and early to rise and so on to reduce. However, there are many causes of hypertension, which may be related to genetic factors or due to other reasons, such as smoking, alcoholism, mental factors, kidney disease, craniocerebral lesions, etc. None of these factors can be solved simply by losing weight, so losing weight does not necessarily reduce blood pressure. People with high blood pressure must actively cooperate with their doctors to take antihypertensive drugs, and also control their weight and maintain a healthy lifestyle.