Hello, among the known causes, genetic and environmental factors can lead to hypertension. Lifestyle factors that help lower blood pressure include reducing salt intake in the diet, eating more fruits and low-fat products, exercising, losing weight and drinking less alcoholic beverages. Other factors that may contribute to hypertension, such as stress, caffeine intake, and insulin resistance, which is common in obesity, are also thought to contribute to the deterioration of hypertension. Recent studies have also pointed out that early childhood events (such as low birth weight, smoking during pregnancy, high PM2.5 exposure  and lack of breast-feeding) are risk factors for adult essential hypertension. However, MSG has not been shown to be directly related to hypertension.