Lowering high blood pressure involves a combination of dietary changes, regular physical activity, weight management, and, for many people, medication. The specific approach depends on how high your numbers are. Normal blood pressure is below 120/80 mm Hg. Stage 1 hypertension starts at 130/80, and Stage 2 begins at 140/90. The higher your stage, the more aggressive the approach needs to be.
Know Your Numbers
Blood pressure is divided into four categories based on readings taken in a clinical setting:
- Normal: below 120/80 mm Hg
- Elevated: 120 to 129 systolic with diastolic still below 80
- Stage 1 hypertension: 130 to 139 systolic or 80 to 89 diastolic
- Stage 2 hypertension: 140/90 or higher
If your top and bottom numbers fall into different categories, you’re classified by the higher one. Elevated blood pressure is a warning sign that lifestyle changes should start now, before it progresses. Stage 1 and Stage 2 typically call for both lifestyle changes and a conversation about medication.
How to Measure Accurately at Home
A single reading at the doctor’s office doesn’t tell the whole story. Home monitoring gives you and your provider a much clearer picture of your day-to-day blood pressure. But technique matters. Small errors in positioning or timing can skew results by 10 points or more.
Before taking a reading, avoid food and drinks for 30 minutes. Empty your bladder. Then sit in a chair with back support for at least five minutes. Both feet should be flat on the floor, legs uncrossed. Rest the arm wearing the cuff on a table so it’s level with your chest. The cuff goes directly on bare skin, snug but not tight. Don’t talk during the reading. Taking two readings a minute apart and averaging them gives the most reliable number.
Reduce Sodium, Increase Potassium
Sodium pulls water into your bloodstream, raising the volume of fluid your heart has to pump. The American Heart Association recommends staying below 2,300 mg of sodium per day, with an ideal target of 1,500 mg for people with high blood pressure. For context, a single teaspoon of table salt contains about 2,300 mg, and most sodium in the American diet comes from processed and restaurant foods rather than the salt shaker.
Reading labels is the most effective first step. Canned soups, deli meats, frozen meals, bread, and condiments are common culprits. Choosing fresh or minimally processed versions of these foods can cut daily sodium by hundreds of milligrams without much effort.
Potassium works in the opposite direction, helping your body flush out sodium and easing tension in blood vessel walls. Adults need 2,600 to 3,400 mg per day depending on age and sex. Bananas get the most attention, but potatoes, beans, spinach, yogurt, and avocados are all rich sources. One important exception: if you have kidney disease or take certain blood pressure medications that affect how your body handles potassium, increasing your intake without medical guidance can be dangerous. High potassium levels in the blood can cause serious heart rhythm problems.
Follow the DASH Eating Plan
The DASH diet (Dietary Approaches to Stop Hypertension) is one of the most studied eating patterns for blood pressure reduction. It’s not a fad diet. It’s a framework built around specific food groups in specific amounts, designed to deliver the right balance of minerals and fiber while keeping sodium and saturated fat low.
For a standard 2,000-calorie day, the targets look like this:
- Grains: 6 to 8 servings daily (prioritize whole grains)
- Vegetables: 4 to 5 servings daily
- Fruits: 4 to 5 servings daily
- Low-fat or fat-free dairy: 2 to 3 servings daily
- Lean meat, poultry, or fish: 6 or fewer servings daily
- Nuts, seeds, and legumes: 4 to 5 servings per week
The emphasis on vegetables, fruits, and low-fat dairy delivers potassium, calcium, and magnesium, three minerals that all play a role in blood pressure regulation. Combined with sodium reduction, the DASH diet can lower systolic blood pressure by several points within weeks.
Get Moving Regularly
Physical activity lowers blood pressure both immediately after a session and over the long term by improving how efficiently your heart pumps and how flexible your blood vessels are. The target is at least 150 minutes per week of moderate-intensity aerobic activity, things like brisk walking, cycling, or swimming. If you prefer vigorous exercise like running or high-intensity interval training, 75 minutes per week achieves a similar benefit. On top of that, aim for muscle-strengthening activities on at least two days per week.
You don’t need to do it all at once. Spreading activity across the week in 30-minute sessions, or even shorter bouts of 10 to 15 minutes, still counts. The key is consistency. Blood pressure benefits from exercise fade within a few weeks if you stop.
Lose Weight If You Need To
Carrying extra weight forces your heart to work harder with every beat and contributes to stiffening of the arteries. The relationship between weight loss and blood pressure is remarkably direct: a meta-analysis of randomized trials found that for every kilogram (about 2.2 pounds) of body weight lost, systolic blood pressure drops roughly 1 mm Hg and diastolic drops about 0.9 mm Hg. That means losing 10 kg (22 pounds) could lower your top number by around 10 points, a change comparable to what some medications achieve.
Even modest weight loss of 5 to 10 percent of your body weight can produce meaningful results. The combination of the DASH eating pattern with a calorie deficit and regular exercise tends to produce the most sustained improvements.
Limit Alcohol
Alcohol raises blood pressure both in the short term and over time with regular use. The threshold for elevated risk is lower than many people expect: more than one drink per day for women or two for men is enough to measurably increase blood pressure. One drink means 12 ounces of beer, 5 ounces of wine, or 1.5 ounces of spirits. If you already drink within those limits, you don’t necessarily need to stop entirely. But if you regularly exceed them, cutting back is one of the simpler changes you can make with a real payoff.
How Blood Pressure Medications Work
When lifestyle changes alone aren’t enough, or when blood pressure is high enough to pose immediate risk, medication becomes part of the plan. There are four main classes used as first-line treatments, each working through a different mechanism.
Diuretics help your kidneys move extra fluid and salt out of your body through urine, reducing the volume of blood your heart has to pump. Calcium channel blockers relax the muscles in your blood vessel walls, allowing them to widen. ACE inhibitors block the production of a hormone that constricts blood vessels. ARBs block the same hormone from a different angle, preventing it from tightening vessels even after it’s produced.
Your provider chooses among these based on your other health conditions. People with kidney disease or heart failure often benefit most from ACE inhibitors or ARBs. Some people need a combination of two or more medications to reach their target. It’s common to try one medication, check your response after a few weeks, and adjust from there. Side effects vary by class but are generally manageable, and switching to a different option is always possible if one isn’t working well for you.
When High Blood Pressure Is an Emergency
A reading of 180/120 or higher is considered a hypertensive crisis. If that number appears alongside symptoms like chest pain, shortness of breath, severe headache, blurred vision, confusion, nausea, or seizures, call 911 immediately. This combination can signal damage to the brain, heart, or kidneys that requires urgent treatment.
If you see a reading of 180/120 but feel fine, wait five minutes and measure again. If it remains that high, contact your healthcare provider right away for guidance, even without symptoms. Not every spike at this level causes immediate organ damage, but it always warrants prompt evaluation.