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World Hypertension Day 2017: Causes, Risks, Treatment of High Blood Pressure

Hansa Kanuga

World Hypertension Day 2017: Causes, Risks, Treatment of High Blood Pressure

Blood pressure is the force of the blood pushing against the walls of the arteries. Each time your heart beats, it pumps out blood into the arteries. The blood pressure is highest when the heart beats, pumping the blood. This is called systolic pressure. When the heart is at rest, between beats, the blood pressure falls. This is the diastolic pressure. It is measured in millimeters of mercury (mm Hg). High blood pressure (or hypertension) is defined in an adult as a blood pressure greater than or equal to 140 mm Hg systolic pressure or greater than or equal to 90 mm Hg diastolic pressure. 120/80 mm Hg or lower is normal blood pressure and 120 and 139 mm Hg systolic or between 80 and 89 mm Hg diastolic is pre-hypertension.

High blood pressure directly increases the risk of coronary heart disease (which leads to heart attack) and stroke, especially when it's present with other risk factors. One can control high blood pressure through healthy lifestyle habits and taking medicines, if needed. We bring to you all that you need to know about high blood pressure this World Hypertension day 2017.

What are the symptoms?

Most people with high blood pressure have no signs or symptoms, even if blood pressure readings reach dangerously high levels. Although a few people with early-stage high blood pressure may have dull headaches, dizzy spells or a few more nosebleeds than normal, these signs and symptoms typically don't occur until high blood pressure has reached an advanced — possibly life-threatening — stage.

What is the cause?

In 90 to 95 percent of high blood pressure cases, there's no identifiable cause. This type of high blood pressure, called essential hypertension or primary hypertension, tends to develop gradually over many years. The other 5 percent to 10 percent of high blood pressure cases are caused by an underlying condition. This type of high blood pressure, called secondary hypertension, tends to appear suddenly and cause higher blood pressure than does primary hypertension. Various conditions can lead to secondary hypertension, including kidney abnormalities, tumours of the adrenal gland or certain congenital heart defects. Certain medications including birth control pills, cold remedies, decongestants, over-the-counter pain relievers and some prescription drugs may cause secondary hypertension. Various illicit drugs, including cocaine and amphetamines can also increase blood pressure.

What are the risk factors?

The risk factors for high blood pressure include:

  • Heredity
  • Obesity
  • Heredity
  • Smoking
  • Age
  • Stress
  • Excessive alcohol
  • Secondary causes include disease conditions that can result in high blood pressure. These are kidney diseases and hormonal diseases such as hypothyroidism and Cushing’s syndrome.

How can high BP be controlled? Follow these steps:
  • Stop smoking
  • Maintain a normal body weight – reduce if over-weight.
  • Eating too much salt makes high blood pressure worse. Low-sodium diets are prescribed to help control high blood pressure. These limit the amount of sodium in the diet to less than 2 grams per day (about half the amount of sodium in the average diet).
  • Eat a healthy diet containing soluble fibre, such as fruit and vegetables.
  • Avoid high fat foods.
  • Avoid coffee and colas
  • Do not drink excessive alcohol.
  • Exercise regularly to keep fit.
  • Reduce stress and relax after work.
  • Follow-up regularly with the doctor.

Lifestyle changes can help control and prevent high blood pressure, even if one is on blood pressure medication:
  • Eat healthy foods - try a diet, which emphasises fruits, vegetables, whole grains and low-fat dairy foods. Get plenty of potassium, which can help prevent and control high blood pressure. Eat less saturated fat and total fat. Limit the amount of sodium in the diet. Avoid coffee and colas.
  • Maintain a healthy weight - if overweight, losing even 5 pounds can lower blood pressure.
  • Increase physical activity - regular physical activity can help lower blood pressure and keep weight under control. Strive for at least 30 minutes of physical activity a day.
  • Limit alcohol - even if you're healthy, alcohol can raise your blood pressure. If you choose to drink alcohol, do so in moderation.
  • Don't smoke - tobacco injures blood vessel walls and speeds up the process of hardening of the arteries. So quit smoking.
  • Manage stress - reduce stress as much as possible. Practice healthy coping techniques, such as muscle relaxation and deep breathing. Getting plenty of sleep can help, too.

Changing your lifestyle can go a long way toward controlling high blood pressure. But sometimes lifestyle changes aren't enough. In addition to diet and exercise, the doctor may recommend medication to lower blood pressure. Which category of medication the doctor prescribes depends on the stage of high blood pressure and whether or not you also have other medical conditions. To reduce the number of doses you need a day, which can reduce side effects, the doctor may prescribe a combination of low-dose medications rather than larger doses of one single drug. In fact, two or more blood pressure drugs often work better than one. Sometimes finding the most effective medication - or combination of drugs - is a matter of trial and error.
How can the sodium in the diet be reduced?

How can the sodium in the diet be reduced? This is how:
  • Use little or no salt to food. Develop a taste for low salt in food. Do not use table salt.
  • Avoid fast foods and restaurant foods as they use very high salt.
  • Avoid ketchup, pickles, olives, all sauces, commercially prepared or cured meats or fish, canned foods (eat fresh foods), salted nuts, peanut butter, chips, popcorn and snacks.
  • Diet suggestions: Use herbs and spices instead of salt for seasoning. Use onions, garlic, lemon and lime juice and rind, dill weed, basil, curry powder, turmeric, cumin, black pepper, or vinegar to enhance the flavour and aroma of foods. Mushrooms, dhania, red chillies, green chillies, and dried fruits also enhance specific dishes.
  • Add a pinch of sugar or a squeeze of lemon juice to bring out the flavour in fresh vegetables.
  • Rinse canned vegetables with tap water before cooking.
  • Substitute unsalted, polyunsaturated cooking medium for butter or ghee.

Wednesday, 17 May 2017
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