If your blood pressure consistently reads below 90/60 mmHg and you’re experiencing symptoms like dizziness, fatigue, or lightheadedness, there are several practical strategies to bring it up. Some work within minutes, while others build your baseline over days and weeks. The right approach depends on whether you need a quick fix in the moment or a longer-term solution.
Increase Your Fluid and Salt Intake
The simplest way to raise blood pressure is to increase your blood volume, and the two fastest levers for that are water and sodium. When you’re dehydrated, there’s less fluid in your bloodstream, which means less pressure against your artery walls. Drinking water steadily throughout the day, and especially before standing for long periods, helps maintain that volume.
Salt works alongside hydration because sodium causes your body to retain water. While most health advice tells people to cut back on salt, the opposite applies when your blood pressure runs low. People with hypotension may benefit from consuming at least 6 grams of salt daily, which is roughly a teaspoon. You can do this by salting your food more liberally, eating salty snacks like olives or broth, or adding electrolyte packets to your water. If you have any kidney or heart conditions, talk to your doctor before increasing sodium, since those conditions change the equation significantly.
Physical Maneuvers That Work Immediately
When you feel a sudden wave of dizziness or lightheadedness, certain body positions can push blood pressure up within seconds. The American Heart Association recommends several of these “counterpressure maneuvers” specifically for people prone to blood pressure drops:
- Leg crossing with muscle tensing: Cross your legs and squeeze your leg, abdominal, and buttock muscles simultaneously. This works standing, sitting, or lying down.
- Squatting: Lower yourself into a squat, which compresses the blood vessels in your legs and forces blood back toward your heart. Tense your abdominal and leg muscles while holding the position.
- Arm tensing: Grip your hands together, interlocking your fingers, and pull in opposite directions as hard as you can.
- Clenching a fist: Make a tight fist at maximum contraction, with or without something in your hand, and hold it.
These aren’t long-term fixes, but they’re valuable tools when you feel symptoms coming on, particularly if you’re about to faint or feel unsteady after standing up.
Wear Compression Stockings
Compression stockings squeeze your lower legs and prevent blood from pooling there, which is one of the main reasons blood pressure drops when you stand. They’re especially useful if you get dizzy after being on your feet for a while or first thing in the morning.
Start with stockings rated at 20 to 30 mmHg of pressure. This provides firm compression without being too difficult to put on. If that feels like too much, step down to 15 to 20 mmHg. If it’s not enough, 30 to 40 mmHg stockings offer stronger support, though they can be harder to pull on, especially if your joints are flexible or your grip strength is limited. Put them on before getting out of bed in the morning for the best effect, since that’s when blood pooling is most likely to cause problems.
Adjust How and When You Eat
Blood pressure naturally dips after meals because your body diverts blood to your digestive system. For people who already run low, this post-meal drop can cause noticeable symptoms like fatigue, dizziness, or brain fog. This is called postprandial hypotension, and it’s particularly common in older adults.
The fix is straightforward: eat smaller, more frequent meals, aiming for roughly six smaller meals instead of three large ones. Keeping meals low in carbohydrates also helps, since carbs trigger a bigger blood flow shift to the gut than protein or fat do. Practically, this means favoring meals built around protein, healthy fats, and non-starchy vegetables rather than large plates of pasta, bread, or rice.
Use Caffeine Strategically
Caffeine temporarily raises blood pressure by narrowing your blood vessels and increasing your heart rate. A cup of coffee or tea before situations where you tend to feel symptomatic (like before a long morning commute or a period of standing) can provide a short-term bump. The effect typically lasts a few hours. If you drink caffeine regularly, your body builds some tolerance, so it works best as a targeted tool rather than an all-day strategy.
Limit Alcohol
Alcohol widens blood vessels and promotes dehydration, both of which lower blood pressure. If you’re already prone to hypotension, even moderate drinking can worsen symptoms. Reducing or eliminating alcohol is one of the easier lifestyle changes that makes a meaningful difference, particularly if you notice symptoms are worse on days after drinking.
Change Positions Slowly
One of the most common triggers for low blood pressure symptoms is standing up too quickly. When you go from lying down or sitting to standing, gravity pulls blood into your legs, and your body needs a moment to compensate. If that compensation is slow or incomplete, your blood pressure drops and you feel dizzy or see spots.
Build a habit of transitioning in stages. When getting out of bed, sit on the edge for 30 seconds before standing. When getting up from a chair, pause halfway and let your body adjust. This is particularly important first thing in the morning, when blood pressure tends to be at its lowest.
Prescription Options for Persistent Cases
When lifestyle changes aren’t enough, doctors can prescribe medications that raise blood pressure through two main approaches. One type works by directly tightening blood vessels, which increases the pressure inside them. The other works by helping your kidneys hold onto more sodium, which increases blood volume. Your doctor will choose based on the specific pattern of your symptoms, whether your drops happen mostly when standing, after eating, or throughout the day.
For people whose blood pressure drops specifically after high-carb meals, there are medications that slow carbohydrate absorption in the gut, blunting that post-meal dip. These are taken only with carb-heavy meals rather than daily.
Symptoms That Need Urgent Attention
Low blood pressure by itself isn’t always a problem. Some people naturally run low without any symptoms. But if you experience cold or clammy skin, rapid shallow breathing, confusion, blurred vision, or fainting, those signs suggest your organs aren’t getting enough blood flow. A sudden drop in blood pressure, especially after an injury, infection, or allergic reaction, can signal a medical emergency that requires immediate care.