The main cause behind high blood pressure is not known. But many factors like smoking, consumption of alcohol, excess intake of sodium, lack of physical activity, stress, etc play a role. Here we mentioned various causes for Hypertension. For More Information Phone Submit Smoking Being overweight Lack of physical activity Too much intake of salt Too much intake of salt Alcohol Consumption Stress Family history of high blood pressure Chronic kidney Disease Adrenal and Thyroid Disorders Sleep Apnea