The causes of high systolic blood pressure in young people are as follows: 1, lack of sleep, biological clock disorders: because of frequent overtime work, the average daily sleep time of less than 5 hours, the risk of hypertension; 2, irregular diet: long-term consumption of high-fat, high-salt food is prone to hypertension, overeating, smoking, drinking, etc. are all hypertensive triggers; 3, too much pressure: young people due to excessive pressure leads to nerve Excessive tension, emotions can not be relieved, long-term suppressed state can appear significantly higher blood pressure; 4, emotional instability: excessive excitement or excessive anger will lead to temporary dysregulation of the cerebral cortex, which leads to increased blood pressure; 5, obesity, abnormal glucose tolerance or diabetes; 6, family genetic factors; 7, other unknown causes trigger.