Low blood pressure, generally defined as a reading below 90/60 mmHg, often responds well to simple actions you can take at home. If you’re feeling dizzy, lightheaded, or faint, the most important first steps are to sit or lie down, drink water, and eat something salty. Most episodes pass within minutes once you help your body push blood back toward your brain and heart.
Quick Physical Techniques That Raise Blood Pressure
When you feel a drop coming on, specific body movements can raise your blood pressure within seconds by squeezing blood from your legs and abdomen back toward your core. The American Heart Association recommends several of these “counter-pressure maneuvers” as first-line responses:
- Cross your legs and squeeze. While standing or lying down, cross your legs and tense the muscles in your legs, abdomen, and buttocks simultaneously. Hold for 30 seconds or until symptoms ease.
- Squat down. Lowering into a squat compresses the blood vessels in your legs and forces blood upward. Tense your lower body and abdominal muscles while squatting for extra effect. Stand back up slowly once the dizziness passes.
- Grip and pull your hands apart. Lock your fingers together and pull your arms in opposite directions with maximum force. This isometric tension raises blood pressure quickly when you can’t easily change position.
- Clench your fists. Squeeze a fist as hard as you can, with or without gripping a small object. This works in situations where squatting or leg crossing isn’t practical.
These techniques are especially useful if your blood pressure drops when you stand up, a pattern called orthostatic hypotension. They buy your body time to adjust.
How to Get Up Safely
Many people with low blood pressure feel worst in the first moments after standing. A careful transition makes a real difference. Before sitting up in the morning, stretch and flex your calf muscles while still lying down. Then sit on the edge of the bed for a full minute before standing. When you do stand, rise slowly and keep one hand on something sturdy until you’re sure you feel stable. Rushing this process is one of the most common triggers for dizziness and fainting.
Drink More Water (and Less Alcohol)
Fluids directly increase the volume of blood in your body, which raises pressure against your vessel walls. Dehydration is one of the most common and easily fixable causes of low blood pressure. There’s no single magic number for daily intake, but the goal is to drink enough that your urine stays pale yellow throughout the day.
Alcohol works against you here. Even in moderate amounts, it’s dehydrating and actively lowers blood pressure. If low readings are a recurring problem, cutting back on alcohol is one of the highest-impact changes you can make. Caffeinated coffee or tea with breakfast can provide a temporary boost, though you’ll want to balance it with extra water since caffeine is also mildly dehydrating.
Increase Your Salt Intake
This is the rare situation where eating more salt is medically encouraged. Salt helps your body hold onto water, which expands blood volume. For people with orthostatic hypotension, medical guidelines typically recommend 2,400 to 4,000 mg of sodium per day, and some specialists go higher, up to 4,800 mg daily for people with conditions like POTS (postural orthostatic tachycardia syndrome).
For context, most dietary guidelines for people with normal or high blood pressure cap sodium at 2,300 mg. So the recommended intake for low blood pressure can be roughly double the standard advice. One study found that adding about 2,400 mg of supplemental sodium per day for two months improved blood pressure stability on standing and reduced fainting episodes. Practical ways to increase salt include adding it liberally to meals, eating pickles, olives, broth, or salted nuts, and using electrolyte drinks rather than plain water during exercise.
Manage Blood Pressure Drops After Meals
Some people experience a noticeable blood pressure drop 30 to 90 minutes after eating, particularly after large or carbohydrate-heavy meals. Your body diverts blood to your digestive system to process food, and if your cardiovascular system can’t compensate, you feel lightheaded or exhausted.
A few adjustments help prevent this. Eat six smaller meals throughout the day rather than three large ones. Keep individual meals low in refined carbohydrates like white bread, pasta, and sugary foods. Drinking 12 to 16 ounces of water before eating can preload your blood volume and buffer the drop. A cup of coffee or tea before breakfast or lunch also helps counteract the post-meal dip.
Compression Garments
Waist-high compression stockings prevent blood from pooling in your legs when you stand. Most specialists recommend stockings rated at 20 to 30 mmHg or 30 to 40 mmHg of pressure. The key detail is that they need to be waist-high, not knee-high. Knee-high stockings simply push the pooling problem up to your thighs. Abdominal compression binders serve a similar purpose by preventing blood from settling in your midsection. These garments are most useful for people who are on their feet for long periods or who consistently feel worse while standing.
Common Causes Worth Investigating
Low blood pressure isn’t always a problem on its own. It’s often a signal pointing to something else. Dehydration is the most frequent culprit, followed by medications. Blood pressure drugs, certain antidepressants, and drugs for prostate conditions are common offenders. If your readings dropped around the time you started a new medication, that connection is worth raising with whoever prescribed it.
Other causes include prolonged bed rest, pregnancy (especially in the first 24 weeks), blood loss, severe infection, and endocrine problems like adrenal insufficiency or thyroid disorders. In younger people, neurally mediated hypotension, where the brain and heart miscommunicate during long periods of standing, is a common pattern. For older adults, the post-meal and post-standing drops described above become increasingly common as the reflexes that regulate blood pressure slow with age.
Signs That Need Urgent Attention
Low blood pressure that causes no symptoms generally isn’t dangerous. Some people run naturally low without ever feeling dizzy. The concern starts when symptoms appear: persistent dizziness, blurred vision, nausea, fatigue, or difficulty concentrating. These suggest your brain and organs aren’t getting enough blood flow, and the strategies above are worth trying consistently.
Certain situations call for immediate medical care. Fainting or near-fainting that happens repeatedly, blood pressure drops accompanied by chest pain or shortness of breath, signs of an allergic reaction, confusion, or cold and clammy skin with a rapid pulse all point to something more serious than routine low blood pressure. A sudden, sharp drop from your normal reading, even if the number isn’t technically below 90/60, can also cause significant symptoms and warrants attention.