Medically Reviewed by Jennifer Robinson, MD on November 12, 2021  Hypertension, or high blood pressure, is a common condition. The older you are, the more likely you are to get it. Blood pressure is the force of blood pressing against the walls of your arteries. When it's too high, your heart has to work harder. This can cause serious damage to your arteries. Over time, uncontrolled high blood pressure makes you more likely to get heart disease, stroke, and kidney disease. High blood pressure is often called a silent killer because it doesn't always have outward symptoms. That means you could have it for years and not know. It can quietly damage your heart, lungs, blood vessels, brain, and kidneys if it isn't treated. It's a major cause of strokes and heart attacks in the U.S. Normal blood pressure readings will fall below 120/80. Higher results over time can indicate hypertension. The top number (systolic) shows the pressure when your heart beats. The lower number (diastolic) measures pressure at rest between heartbeats, when your heart refills with blood. Elevated blood pressure is consistently just above the normal level -- anywhere between 120 and 129 for systolic pressure and less than 80 for diastolic pressure. People in this range are more likely to get heart disease than those with a lower reading. Your doctor may suggest lifestyle changes to help get your numbers down. You have stage 1 high blood pressure if your systolic reading is between 130 and 139 or your diastolic is between 80 and 89. A reading of 140 or higher systolic or 90 or greater diastolic is stage 2 hypertension. You may not have symptoms. If your systolic is over 180 or your diastolic is above over 120, you may be having a hypertensive crisis, which can lead to a stroke, heart attack, or kidney damage. Rest for a few minutes and take your blood pressure again. If it's still that high, call 911. Symptoms include a severe headache, anxiety, and nosebleeds. You might feel short of breath or pass out. Up to age 45, men are more likely to have high blood pressure than women. Things even up as we grow older, and by 65 it's more common in women. You're more likely to get it if a close family member has it. It's also widespread among people with diabetes. But in most cases, the cause isn't known. Sometimes, kidney or adrenal gland disease can bring it on. African-Americans are more likely to get hypertension -- and at a younger age. Genetic research suggests they're more sensitive to salt. Diet and excess weight make a difference, too. Or at least watch how much you get. This building block of salt causes your body to retain fluid. That puts a greater burden on your heart and boosts your blood pressure. Aim for less than 2,500 milligrams of sodium per day. You'll need to check nutrition labels and menus carefully. Processed foods make up the bulk of our sodium intake. Canned soups and lunch meats are prime suspects. It can make your blood pressure spike, but there's no proof stress keeps it high long-term. To manage it, stay away from unhealthy things like poor diet, alcohol use, and smoking. All are linked to high blood pressure and heart disease. They put a strain on your heart and raise your odds of having high blood pressure. That's why diets designed to lower blood pressure also aim to control calories. You'll cut out fatty foods and extra sugars, while adding fruits, vegetables, lean protein, and fiber. Even a 10-pound weight loss can make a difference. Too much alcohol can boost your blood pressure. Limit drinks to no more than two a day for men, or one for women. How much is that?
It can make you jittery, so does caffeine also raise your blood pressure? It might for a little while, but there's no link between caffeine and hypertension. You can safely drink one or two cups of coffee a day. Gestational hypertension can affect women who've never had high blood pressure before. It usually happens in the second half of pregnancy. Without treatment, it may lead to a serious condition called preeclampsia. This limits blood and oxygen flow to your baby and can affect your kidneys and brain. After delivery, your blood pressure should return to its normal level, but it is possible for the condition to persist for several weeks.. Cold and flu medicines with decongestants are one of several classes of medication that can raise blood pressure. Others include NSAID pain relievers, steroids, diet pills, birth control pills, and some antidepressants. If you have high blood pressure, ask your doctor if any drugs or supplements you're taking could affect your readings. You may have a high reading only in the doctor's office. This is probably due to nerves. You might have one only every now and then. This could mean you're more likely to get high blood pressure later. For a more accurate reading, take your blood pressure at home, chart the results, and share them with your doctor. Bring your home monitor in so the doctor can check the device and your technique. It's more often a problem for older people, but children can also have high blood pressure. What's normal varies based on a child’s age, height, and sex. Your doctor will need to tell you if there's a concern. Children are more likely to get it if they're overweight, have a family history of the illness, or are African-American. You may be able to lower your blood pressure by eating better. The DASH Diet -- Dietary Approaches to Stop Hypertension -- calls for more fruits, vegetables, whole-grain foods, low-fat dairy, fish, poultry, and nuts. Steer clear of red meat, saturated fats, and sweets. Cutting back on sodium in your diet can also help. Regular activity helps lower blood pressure. Adults should get about 150 minutes of moderate-intensity exercise every week. That could include gardening, walking briskly, bicycling, or other aerobic exercise. Add in some muscle strengthening at least 2 days a week. Target all your major muscle groups. Also called water pills, they're often the first choice if diet and exercise changes aren't enough. They help your body shed excess sodium and water to lower blood pressure. That means you'll pee more often. Some diuretics may lower the amount of potassium in your body. You might notice more muscle weakness, leg cramps, and fatigue. Others can boost blood sugar in people with diabetes. Erectile dysfunction is a less common side effect. These drugs slow your heart rate, which means your ticker doesn't have to work as hard. They're also used to treat other heart conditions, like an abnormal heart rate, or arrhythmia. Your doctor may prescribe them along with other medications. Side effects can include insomnia, dizziness, fatigue, cold hands and feet, and erectile dysfunction. These meds lower your body's supply of angiotensin II -- a substance that makes blood vessels contract and narrow. The result is more relaxed, open (dilated) arteries, as well as lower blood pressure and less effort for your heart. Side effects can include a dry cough, skin rash, dizziness, and high potassium levels. Don’t get pregnant while taking one of these drugs. Instead of lowering your supply of angiotensin II, these drugs block receptors for angiotensin. It's like placing a shield over a lock. This blockade prevents the chemical's artery-tightening effects and lowers your blood pressure. ARBs can take several weeks to become fully effective. Possible side effects include dizziness, muscle cramps, insomnia, and high potassium levels. Don’t get pregnant while taking this medication. Calcium causes stronger heart contractions. These medications slow its movement into the cells of your heart and blood vessels. That eases your heartbeat and relaxes your blood vessels. These meds can cause dizziness, heart palpitations, swollen ankles, and constipation. Take them with food or milk. Avoid grapefruit juice and alcohol because of possible interactions. Vasodilators, alpha blockers, and central agonists also relax blood vessels. Side effects can include dizziness, a fast heartbeat or heart palpitations, headaches, or diarrhea. Your doctor may suggest them if other blood pressure medications don't work well enough or if you have another condition. Meditation can lower blood pressure by putting your body into a state of deep rest. Yoga, tai chi, and deep breathing also help. Pair these relaxation techniques with other lifestyle changes, like diet and exercise. Be aware that herbal therapies may conflict with other drugs you take. Some herbs actually raise blood pressure. Tell your doctor if you take herbal or other dietary supplements. Hypertension is often a lifelong condition. It's important to take your medications and continue to monitor your blood pressure. If you keep it under control, you can lower your odds of stroke, heart disease, and kidney failure. IMAGES PROVIDED BY: 1) 3D4Medical.com, Photo Researchers 2) Laura Doss/Fancy 3) Jutta Klee/Ableimages 4) Comstock 5) Deborah Davis/Photonica 6) Tiziou/Photononstop 7) Andersen Ross/Blend Images 8) Amana Productions 9) Joanne Obrien/Photolibrary 10) Nisian Hughes/Lifesize 11) Isabelle Rozenbaum/PhotoAlto 12) Wesley Hitt/Tips Italia 13) Erik Isakson/Blend Images 14) Pixtal Images 15) Martin Barraud/OJO Images 16) Image Source 17) Jupiterimages/FoodPix 18) Ariel Skelly/Blend Images 19) iStock, Top Photo 20) Science Picture Co. 21) Steve Oh, M.S. / Phototake 22) Huntstock 23) Val Loh/Photonica 24) Tom Grill/Iconica 25) Stewart Cohen/The Image Bank 26) Foodcollection SOURCES: American Heart Association: "Stroke," "Understanding Blood Pressure Readings," "What Are the Symptoms of High Blood Pressure?" "Hypertensive Crisis," "Understand Your Risk for High Blood Pressure," "High Blood Pressure and African Americans," "Shaking the Salt Habit," "Caffeine and Blood Pressure," "Over-the-Counter Medications," "High Blood Pressure in Children," "Types of Blood Pressure Medications." CDC: "High Blood Pressure Facts," "About High Blood Pressure," "Physical Activity and Health." FDA: "Medications for High Blood Pressure." National Heart, Lung, and Blood Institute, National Institutes of Health: "What is High Blood Pressure?" "What are High Blood Pressure and Prehypertension?" "Your Guide to Lowering Your Blood Pressure with DASH," "Living with High Blood Pressure," "What is Preeclampsia?" "High Blood Pressure Detection," "How is High Blood Pressure Treated?" The American College of Obstetricians and Gynecologists: "High Blood Pressure During Pregnancy." The Harvard Medical School Family Health Guide: "Prehypertension: Does it really matter?" U.S. Department of Health and Human Services: “Your Guide to Lowering Blood Pressure.” Verdecchia, P. European Heart Journal, 2002 |
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