If your blood pressure has dropped and you’re feeling dizzy, lightheaded, or faint, there are several things you can do right now to bring it back up. Low blood pressure, generally defined as a reading below 90/60 mmHg, isn’t always dangerous, but when it causes symptoms, you need to act fast. The good news is that simple physical maneuvers, fluids, and positional changes can raise your blood pressure within seconds to minutes.
Change Your Body Position
The fastest way to raise your blood pressure when you feel faint is to change how your body is oriented relative to gravity. If you’re standing, sit or lie down immediately. If you can lie down and elevate your legs above the level of your heart, even better. This position (called Trendelenburg in clinical settings) pushes pooled blood from your legs back toward your heart and brain. A systematic review published in the Journal of Cardiothoracic and Vascular Anesthesia found that lying with the legs elevated increases the amount of blood the heart pumps per beat by about 11% and raises overall blood pressure.
If you can’t lie down, squatting is the next best option. Dropping into a squat compresses the veins in your legs and abdomen, forcing blood upward. This is one of the techniques recommended by the American Heart Association for people prone to blood pressure drops. Once your symptoms ease, stand up slowly.
Use Physical Counterpressure Maneuvers
These are deliberate muscle-tensing techniques that squeeze blood out of your limbs and back toward your core. They work within seconds and you can do them anywhere. The American Heart Association recommends several specific techniques:
- Leg crossing with muscle tensing: Cross your legs at the ankles and squeeze your thigh, buttock, and abdominal muscles as hard as you can. This works standing or lying down.
- Isometric handgrip: Clench your fists as tightly as possible, or grip an object and squeeze. You can also hook your fingers together and pull your arms in opposite directions with maximum force.
- Squatting with tensing: Drop into a squat while also tightening your lower body and abdominal muscles. Hold the squat until you feel better, then stand slowly.
The key with all of these is maximum effort. A gentle squeeze won’t do much. You’re essentially using your skeletal muscles as pumps. Your calf muscles alone can push about 60% of the blood volume they contain back toward your heart with each contraction, and your much larger thigh muscles contribute even more total volume.
Drink Water and Eat Something Salty
Dehydration is one of the most common causes of low blood pressure, and drinking water is one of the simplest fixes. A glass or two of water can raise blood pressure within minutes by increasing the volume of fluid in your bloodstream. If you’ve been sweating, sick, or simply haven’t been drinking enough, this alone may solve the problem.
Salt helps your body hold onto that fluid. Eating a salty snack, adding extra salt to a meal, or drinking a broth or electrolyte beverage can support a more sustained increase. If you’re someone who regularly deals with low blood pressure, your doctor may have already suggested increasing your daily sodium intake, which is the opposite advice given to people with high blood pressure.
Have a Cup of Coffee
Caffeine raises blood pressure, especially if you don’t drink it regularly. A single cup of coffee can increase blood pressure by about 5 to 10 points in people who are sensitive to it, with the effect kicking in within 30 minutes and lasting up to two hours. If you’re a daily coffee drinker, the effect will be smaller because your body builds tolerance. But for an occasional boost, caffeine works.
Tea, energy drinks, and even dark chocolate contain enough caffeine to have a similar, though sometimes milder, effect.
Try Compression Garments
If low blood pressure is a recurring problem for you, especially when standing, compression stockings or an abdominal binder can help prevent blood from pooling in your lower body. Research published in the journal Neurology compared the two and found that abdominal compression was more effective, raising standing blood pressure by about 10 mmHg and helping in roughly 52% of cases. Compression stockings were less impressive, adding only about 6 mmHg on average.
The takeaway: if you’re choosing one, an abdominal binder (a wide elastic band worn around your midsection) tends to work better than knee-high stockings. Waist-high compression garments that cover both the legs and abdomen offer the best of both approaches.
Prevent Blood Pressure Drops After Meals
Some people experience a noticeable blood pressure drop after eating, a condition called postprandial hypotension. It happens because your body diverts blood to your digestive system, leaving less circulating elsewhere. This is more common in older adults and people with conditions affecting their nervous system.
Two dietary changes can make a real difference. First, eat smaller meals more frequently, six small meals instead of three large ones, so your body doesn’t redirect as much blood at once. Second, reduce carbohydrates at each meal. Carb-heavy meals cause the largest blood pressure drops because they trigger more digestive activity. Pairing these strategies with drinking water before or during meals adds another layer of protection.
When Low Blood Pressure Is an Emergency
Most episodes of low blood pressure are uncomfortable but not dangerous. However, if you experience confusion, cold or clammy skin, rapid shallow breathing, a weak and fast pulse, or bluish skin, those are signs that your organs aren’t getting enough blood. Fainting, or feeling like you’re about to faint despite lying down, also signals something more serious. These symptoms can indicate shock, which requires immediate emergency care. If home measures aren’t bringing relief within a few minutes, or if symptoms are getting worse rather than better, call for help.