Most doctors consider blood pressure too low only if it causes symptoms. Some experts define low blood pressure as readings lower than 90 mm Hg systolic or 60 mm Hg diastolic. If either number is below that, your pressure is lower than normal. A sudden fall in blood pressure can be dangerous.
The highs and lows. As a general guide, the ideal blood pressure for a young, healthy adult is between 90/60 and 120/80. If you have a reading of 140/90, or more, you have high blood pressure (hypertension). This puts you at greater risk of serious health conditions, such as strokes or heart attacks.
If a person experiences low blood pressure along with concerning symptoms — such as a loss of consciousness, mental confusion, and a weak, rapid pulse and breathing pattern — they should seek immediate medical attention.
However, 70/40 is a rather low reading, and could definitely cause the need to sit down or feel a little lightheaded. Unusually low readings should be evaluated to rule out medical causes such as orthostatic hypotension, endocrine disorders, fainting, dehydration, severe infection and shock.
How to raise low blood pressure
- Drink plenty of water. Dehydration can sometimes lead to low blood pressure.
- Eat a balanced diet.
- Eat smaller meals.
- Limit or avoid alcohol.
- Eat more salt.
- Check your blood sugar.
- Get your thyroid checked.
- Wear compression stockings.
For most adults, a healthy blood pressure is usually less than 120/80 mm Hg. Low blood pressure is blood pressure that is lower than 90/60 mm Hg. Some people have low blood pressure all the time, and it is normal for them.
Symptoms of low blood pressure
- Dizziness or lightheadedness.
- Nausea.
- Fainting (syncope)
- Dehydration and unusual thirst.
- Dehydration can sometimes cause blood pressure to drop. However, dehydration does not always cause low blood pressure.
- Lack of concentration.
- Blurred vision.
- Cold, clammy, pale skin.
Normal blood pressure for adults is generally in the range of 90/50 to 120/90 mm Hg . Hypotension is an abnormally low blood pressure, usually below 90/50 mm Hg. In severe or prolonged cases, it can be a serious medical condition.
Fifteen foods that help to lower blood pressure
- Berries. Share on Pinterest Blueberries and strawberries contain anthocyanins, which can help reduce a person's blood pressure.
- Bananas.
- Beets.
- Dark chocolate.
- Kiwis.
- Watermelon.
- Oats.
- Leafy green vegetables.
Normal Blood Pressure By Age
| Age | SBP | DBP |
|---|
| 21-25 | 120.5 | 78.5 |
| 26-30 | 119.5 | 76.5 |
| 31-35 | 114.5 | 75.5 |
| 36-40 | 120.5 | 75.5 |
A normal blood pressure for an adult is defined as 90 to 119 systolic over 60 to 79 diastolic. The range between 120 to 139 systolic and 80 to 89 diastolic is called pre-hypertension, and readings above that indicate hypertension, or high blood pressure.
Doctors generally define low blood pressure as 90/60 mm Hg or below, commonly said as “90 over 60†Usually, doctors only treat hypotension if it is severe enough to cause symptoms. Low blood pressure can be temporary, or it can be a chronic (long-lasting) condition.
Here's What To Eat To Help Raise Low Blood Pressure:
- Drink Plenty of Fluids. When you're dehydrated, your blood volume is reduced, which causes your blood pressure to decrease.
- Eat Salty Foods.
- Drink Caffeine.
- Boost Your B12 Intake.
- Fill Up On Folate.
- Cut Back On Carbs.
- Reduce Meal Size.
- Easy On The Alcohol.
Understanding HypotensionIf your blood pressure is 120/80 millimeters of mercury (mm Hg) or lower, it's considered normal. Generally, if the blood pressure reading is under 90/60 mm Hg, it is abnormally low and is referred to as hypotension.
Your doctorIf your blood pressure is higher than 160/100 mmHg, then three visits are enough. If your blood pressure is higher than 140/90 mmHg, then five visits are needed before a diagnosis can be made. If either your systolic or diastolic blood pressure stays high, then the diagnosis of hypertension can be made.
Common factors that can lead to high blood pressure include: A diet high in salt, fat, and/or cholesterol. Chronic conditions such as kidney and hormone problems, diabetes, and high cholesterol. Family history, especially if your parents or other close relatives have high blood pressure.
High Blood Pressure Can Increase Your Risk of Diabetes, Check Now
| Normal blood pressure | 90/60 to under 120/80 mm Hg. |
|---|
| Prehypertension, or risk for hypertension | 120-139/80-89 mm Hg |
| Stage 1 hypertension | 140-159/90-99 mm Hg. |
| Stage 2 hypertension | over 160/100 mm Hg. |
Most people who have high blood pressure do not have symptoms. In some cases, people with high blood pressure may have a pounding feeling in their head or chest, a feeling of lightheadedness or dizziness, or other signs.
If your blood pressure is elevated and you want to see an immediate change, lie down and take deep breaths. This is how you lower your blood pressure within minutes, helping to slow your heart rate and decrease your blood pressure. When you feel stress, hormones are released that constrict your blood vessels.
11 Foods that Increase Blood Pressure
- Table Salt. If you are trying to follow a low-sodium diet, this seems like an obvious one, but it needs to be said.
- Certain Condiments and Sauces.
- Foods with Saturated and Trans Fat.
- Fried Food.
- Fast Food.
- Canned, Frozen, and Processed Foods.
- Deli Meats and Cured Meats.
- Salted Snacks.
If your blood pressure is extremely high, there may be certain symptoms to look out for, including:
- Severe headaches.
- Nosebleed.
- Fatigue or confusion.
- Vision problems.
- Chest pain.
- Difficulty breathing.
- Irregular heartbeat.
- Blood in the urine.
What is high blood pressure (hypertension)?
| Blood Pressure Levels |
|---|
| Normal | systolic: less than 120 mm Hgdiastolic: less than 80 mm Hg |
| At Risk (prehypertension) | systolic: 120–139 mm Hg diastolic: 80–89 mm Hg |
| High Blood Pressure (hypertension) | systolic: 140 mm Hg or higher diastolic: 90 mm Hg or higher |
There's no proof that stress by itself causes long-term high blood pressure. But reacting to stress in unhealthy ways can increase your risk of high blood pressure, heart attacks and strokes. Certain behaviors are linked to higher blood pressure, such as: Smoking.
