High blood pressure, or hypertension, can often be reduced through changes in diet, physical activity, weight, tobacco use and alcohol consumption. But lifestyle changes do not always replace medication, particularly when blood pressure remains high or a person has other conditions that increase their cardiovascular risk.
Hypertension occurs when the pressure of blood against the walls of the arteries is consistently too high. It can damage blood vessels and organs over time and increases the risk of heart disease, stroke and kidney disease. Many people have no symptoms, which means regular blood pressure checks are important.
In the United States, nearly half of adults have high blood pressure under the current U.S. definition, according to the Centers for Disease Control and Prevention. CDC data show that 48.1%, or about 119.9 million adults, had high blood pressure, while only about one in four people with the condition had it under control.
The condition is also a major global health problem. The World Health Organization estimates that 1.4 billion adults aged 30 to 79 had hypertension in 2024, with about two-thirds living in low- and middle-income countries.
Lifestyle changes can make a difference
The 2025 American Heart Association and American College of Cardiology blood pressure guideline recommends lifestyle changes for adults with elevated blood pressure or hypertension. These include maintaining a healthy weight, following a heart-healthy diet, reducing sodium, increasing physical activity, managing stress and reducing or eliminating alcohol.
For some people, these measures can produce a meaningful reduction in blood pressure. Others will still need medication.
Anyone taking blood pressure medicine should not stop or change the dose without speaking to a health professional.
Reduce salt and improve the overall diet
Excess sodium can cause the body to retain more fluid and can contribute to higher blood pressure.
The American Heart Association recommends that adults consume no more than 2,300 milligrams of sodium a day, with an ideal limit of less than 1,500 milligrams for most adults, particularly those with high blood pressure. The WHO recommends less than 2,000 milligrams of sodium per day, equivalent to less than 5 grams of salt.
Much of the sodium in modern diets comes from processed and packaged foods, restaurant meals and other prepared foods rather than from the salt shaker alone.
Reading food labels can help people identify foods with high sodium levels. Choosing fresh or minimally processed foods more often and eating more vegetables, fruits, whole grains, legumes, nuts and seeds can also support blood pressure control.
A DASH-style eating pattern, which emphasizes these foods while limiting sodium, saturated fat and highly processed foods, is commonly recommended for people trying to control blood pressure.
Reducing added sugar is also part of a heart-healthy diet, but sodium reduction is the more direct dietary measure for blood pressure.
Be physically active
Regular physical activity can help lower blood pressure, strengthen the heart and improve overall cardiovascular health.
The American Heart Association recommends at least 150 minutes of moderate-intensity aerobic activity each week for adults. Activities such as brisk walking, cycling, swimming and similar forms of exercise can contribute to that total.
People who are not currently active do not necessarily need to begin with intense exercise. Starting gradually and increasing activity over time can make it easier to establish a routine.
People with existing medical conditions or concerns about exercising should discuss an appropriate activity level with a health professional.
Maintain a healthy weight
Excess body weight is a recognised risk factor for high blood pressure. For people who are overweight, losing weight can help reduce blood pressure and improve other cardiovascular risk factors.
The American Heart Association notes that even modest weight loss can help. The focus should be on sustainable changes in eating habits and physical activity rather than rapid or extreme weight-loss measures.
Stop smoking and avoid tobacco
Smoking damages blood vessels and can cause a temporary rise in blood pressure each time a person smokes. Tobacco use also increases the risk of heart disease and stroke.
Stopping tobacco use is therefore an important part of reducing cardiovascular risk, whether or not a person has hypertension. The WHO lists quitting tobacco among the lifestyle measures that can help lower blood pressure and prevent its complications.
People who want to quit can discuss evidence-based cessation support with a health professional.
Limit alcohol
Alcohol can contribute to higher blood pressure, particularly when consumed in excess.
The American Heart Association recommends drinking less or no alcohol to help prevent or manage high blood pressure. The WHO advises adults who drink to limit consumption to no more than one drink a day for women and two for men.
People with hypertension should discuss their alcohol intake with a health professional, particularly if their blood pressure is difficult to control.
Manage stress and get enough sleep
Stress can temporarily raise blood pressure because the body’s stress response increases heart rate and constricts blood vessels. The relationship between long-term stress and sustained hypertension is more complicated and continues to be studied.
Healthy ways of managing stress include regular physical activity, adequate sleep, relaxation techniques and addressing sources of ongoing stress where possible. The American Heart Association recommends at least seven hours of sleep a night for adults.
Poor sleep can also be associated with higher blood pressure, making sleep part of a broader approach to cardiovascular health.
Drink enough water, but do not rely on a fixed amount
Staying hydrated is important for normal body function, but there is no universal requirement for every adult to drink exactly eight glasses, or 64 ounces, of water every day.
Fluid needs vary according to factors such as body size, activity, climate, diet and medical conditions. Drinking water is part of general healthy living, but it should not be presented as a treatment for hypertension.
People with certain heart or kidney conditions may have specific fluid recommendations from their health professionals.
Vaccination is important, but it does not lower blood pressure
The original advice linking routine vaccination directly to blood pressure control is misleading.
Vaccines help prevent infectious diseases, but they are not a lifestyle treatment for hypertension. Whether an adult needs influenza, pneumococcal, hepatitis B or another vaccine depends on factors such as age, medical conditions, occupation and national immunisation recommendations.
For example, CDC guidance specifically excludes hypertension alone from the chronic-heart-disease category used as an indication for adult pneumococcal vaccination.
Vaccination can still be an important part of preventive health care, but it should be discussed separately from measures used to lower blood pressure.
When lifestyle changes are not enough
Lifestyle changes can lower blood pressure, but hypertension is a chronic condition and some people need medication in addition to those changes.
The 2025 U.S. hypertension guideline recommends medication alongside lifestyle measures for adults with an average blood pressure of at least 140/90 mmHg. Medication may also be recommended at lower blood pressure levels for some people with cardiovascular disease, previous stroke, diabetes, chronic kidney disease or elevated cardiovascular risk.
The WHO similarly says that many people with hypertension will still need medicines even after making lifestyle changes.
That makes regular monitoring important. A person should not assume that feeling well means their blood pressure is under control, because hypertension often has no warning symptoms.
The most effective approach is usually a combination of healthy living, regular blood pressure checks and medical treatment when it is needed. Controlling hypertension can reduce the risk of heart attack, stroke, kidney damage and other complications.
