Low blood pressure, defined as a reading below 90/60 mmHg, can often be managed with simple lifestyle changes like increasing fluid intake, adjusting your diet, and using physical techniques that push blood back toward your heart. If your low blood pressure causes symptoms like dizziness, lightheadedness, or fainting, several practical strategies can help raise it and keep it stable throughout the day.
Quick Physical Techniques for Immediate Relief
When you feel a sudden wave of dizziness or lightheadedness, your blood pressure has likely dropped and your brain isn’t getting enough blood flow. A set of physical counterpressure maneuvers, recommended by the American Heart Association, can raise your blood pressure within seconds by squeezing blood from your legs and abdomen back up toward your heart.
The most effective options include:
- Leg crossing with muscle tensing: Cross your legs and squeeze your leg, abdominal, and buttock muscles tightly. You can do this standing or lying down.
- Squatting: Lower yourself into a squat and tense your lower body and abdominal muscles. Stay there until symptoms pass, then stand slowly.
- Hand gripping: Lock your fingers together and pull your arms in opposite directions with maximum force.
- Fist clenching: Make a tight fist and hold it at maximum contraction, with or without something in your hand.
These aren’t long-term fixes, but they’re valuable tools when you feel symptoms coming on, especially when standing up quickly or after being on your feet for a while. Think of them as your first line of defense while you work on the bigger-picture strategies below.
Drink More Fluids (and Add Salt)
Dehydration is one of the most common and most fixable causes of low blood pressure. When your blood volume drops because you haven’t had enough fluids, there simply isn’t enough liquid in your system to maintain adequate pressure. Sodium and chloride, the two components of table salt, help your body hold onto water and maintain blood volume. This is why people with chronically low blood pressure are often advised to increase their salt intake, the opposite of the usual heart-health advice.
A practical starting point is to drink water consistently throughout the day rather than in large amounts at once. Keeping a water bottle nearby and sipping regularly works better than trying to catch up later. Adding a pinch of salt to your water or choosing electrolyte drinks can help your body retain the fluid rather than just passing it through. Some people find that drinking a full glass of water 15 to 30 minutes before standing up or being active helps prevent dizziness.
Adjust How and What You Eat
Large meals, especially carbohydrate-heavy ones, can cause your blood pressure to drop significantly after eating. This happens because your body diverts blood to your digestive system, leaving less available for the rest of your circulation. The Cleveland Clinic recommends eating six smaller meals throughout the day instead of three large ones and keeping those meals low in carbohydrates. Choosing meals built around protein, healthy fats, and vegetables rather than pasta, bread, or rice can prevent those post-meal dips.
Beyond meal timing, certain nutritional deficiencies can contribute to low blood pressure. Low levels of vitamin B12 and folate can lead to anemia, which reduces your blood’s ability to carry oxygen and drops your pressure. Iron deficiency does the same thing. If your low blood pressure has come on gradually and you feel fatigued alongside dizzy, it’s worth checking whether a nutritional gap is part of the picture.
Try Compression Garments
Compression stockings or abdominal binders work by physically squeezing blood out of your lower body and pushing it back toward your heart. They’re especially helpful if your blood pressure drops when you stand up, a pattern called orthostatic hypotension. Research on compression therapy for this condition has tested garments ranging from 20 to 40 mmHg of pressure at the ankle, with some studies using graduated compression that applies higher pressure at the ankle and less at the thigh.
Over-the-counter compression stockings in the 20 to 30 mmHg range are a reasonable place to start. Knee-high stockings help, but thigh-high or waist-high options that also compress the abdomen tend to be more effective because they prevent blood from pooling in a larger area. They can feel tight and warm, so many people wear them only during the day and remove them at night.
Change How You Move Through the Day
Small changes in how you move can make a noticeable difference. Standing up slowly, especially first thing in the morning, gives your circulatory system time to adjust. Sitting on the edge of your bed for 30 seconds before standing is a simple habit that prevents the sudden drop many people experience when they wake up. Avoiding long periods of standing still, crossing your legs when sitting, and sleeping with the head of your bed slightly elevated (about 10 to 15 degrees) can all help keep blood pressure more stable.
Caffeine can temporarily raise blood pressure, and some people with chronically low readings find a cup of coffee before meals or activity helpful. This isn’t a strategy for everyone, but if you tolerate caffeine well, it’s a practical tool.
When Lifestyle Changes Aren’t Enough
If you’ve tried increasing fluids, adding salt, eating smaller meals, and using compression garments but still deal with frequent symptoms, prescription medications are available. The two most commonly prescribed options work in different ways. One type narrows your blood vessels to increase pressure directly, typically taken multiple times a day due to its short duration of action (about three hours). The other helps your kidneys retain sodium and water, expanding your blood volume. Your doctor will typically start with lifestyle measures and add medication only when symptoms significantly affect your daily functioning.
It’s also worth identifying whether something else is driving your low blood pressure. Certain medications, particularly those for high blood pressure, depression, or prostate issues, can lower your readings as a side effect. Heart conditions that reduce how effectively your heart pumps, thyroid disorders, and adrenal insufficiency can all cause persistent low blood pressure. If your readings are consistently low and you’re experiencing fainting, severe fatigue, blurred vision, or confusion, those symptoms point to something that needs medical investigation rather than home management alone.
What Counts as a Problem
Not all low blood pressure needs fixing. Some people naturally run readings below 90/60 and feel perfectly fine. Low blood pressure only becomes a concern when it causes symptoms: dizziness, lightheadedness, fainting, blurred vision, nausea, or unusual fatigue. The goal of treatment isn’t to hit a specific number on the monitor. It’s to eliminate the symptoms that interfere with your daily life. If you feel good and your blood pressure happens to be low, you likely don’t need to do anything about it.