Introduction
This outlines the risk factors for Coronary Heart Disease (CHD) and ways to help reduce your risk.
Risk factors
Gender: Males are more likely to develop CHD at a younger age and women develop post menopause.
Ethnicity
CHD affects all races but there are marked international differences. People from a South Asian background living in the UK are 50 percent more likely to die from CHD than the rest of the UK population.
Evidence proves the countries which follow a traditional Mediterranean diet have lower cases of CHD.
Age
Mortality from CHD increases with age.
Family History
A significant family history is considered if CHD is diagnosed in a close male relative before the age of 55 years or 65 years for a female. Clusters of risk factors such as high blood pressure, diabetes and obesity are also common family traits.
Lifestyle risk factors
Smoking
People who smoke are twice as likely to have a heart attack compared to those who have never smoked. Smoking a pipe, cigars, roll ups, shish smoking (hubble-bubble or water pipes), chewing paan all have the same effect as smoking a cigarette.
Smoking does not relieve stress. Stop smoking services are available at many GP surgeries or pharmacies. Smoking increases heart rate, blood pressure, reduces amount of oxygen in the blood and makes the blood more ‘sticky’ so increases risk of blood clots.
Stopping smoking after a heart attack reduces the risk of having another attack and improves chances of survival.
Obesity
Obesity contributes to increased blood pressure, cholesterol and an increased risk of developing diabetes. Reduce your portion sizes, develop regular meal patterns and plan you meals. Abdominal fat relates strongly to CHD. Monitor your waist size (measured around your belly button).
Males should aim below 37 inches and females below 32 inches. People from a South Asian background should aim for a lower waist size.
DIET
Modifying your diet will help with cholesterol levels, diabetes, maintaining your weight and blood pressure.
Alcohol
Drinking more than the recommended amount of alcohol can have a harmful effect on your heart and general health. It is also high in calories and can lead to weight gain.
There may be some heart health benefits for women over the age of 55 as long as they have no more than five units in a week. However we would not advise you to start drinking if you don’t already as there are safer, healthier ways to protect your heart.
Moderation: national guidelines advise you should have no more than 14 units per week with two alcohol free days. What is a unit?
- One standard glass of wine (175ml)= two point three units – be aware of glass size
- Half a pint of beer, lager, cider (300mls) = one unit.
- One single pub measure of spirits (25mls) = one unit
- Higher percentage of alcohol will be more units
Physical activity
Physical activity has a very beneficial impact on most cardiac risk factors. If you regularly exercise (30 minutes moderate exercise, five days a week) you are reducing your chances of experiencing an attack.
Stress
Stress is very difficult to define. Things that may be stressful for one person may be a positive challenge for another. Stress encourages less healthy behaviours.
Coming to terms with having a cardiac event may help to reduce your anxiety. Cardiac Support Groups / Psychology service, more information is available from the Cardiac Rehabilitation team.
Diabetes
Diabetes increases the risk of CHD and also increased the severity of other risk factors.
It is a strong risk factor for women as it diminishes relative protection from female hormones.
It affects the walls of the artery making them more likely to develop atheroma (narrowing). It also affects the efficiency of the heart muscle as well as the nerves to the heart so that symptoms of angina may not be felt in the usual way. Addressing and maintaining risk factors will improve glucose control reducing long term complications of diabetes.
Hypertension/high blood pressure
High blood pressure can lead to strokes, heart attacks, peripheral vascular disease and an enlarged heart. There is a higher risk of developing high blood pressure if you smoke and have high cholesterol.
There is a link between too much salt in your diet and high blood pressure. You should take no more than six grams per day (one teaspoon). Recommended blood pressure 130/80 or below. Excess weight, excess salt intake and excess alcohol intake will raise blood pressure.
Hypercholesterolemia/High cholesterol
Cholesterol is made mainly in the body. Some cholesterol is needed, however too much can lead to health issues. The liver makes some cholesterol from saturated fats in our diet, hence recommendation to reduce saturated fat. A normal range is four mmol/L
References
British Heart Foundation www.bhf.org.uk.