Few afflictions are more dreaded than stroke, that bomb in the brain that can severely disable or kill its victims. Fortunately, not all strokes are that catastrophic, but even mild ones disrupt lives and require weeks or months of rehabilitation.
Obviously, it’s crucial to do all we can to avoid such a potentially devastating illness. So I thought a review would be in order: what is stroke, what are the risk factors, how can it be prevented and what are the warning signs?
There are two basic kinds of stroke. The most common, the ischemic stroke, is like a heart attack in the head: the blood flow to the brain is hindered or blocked by atherosclerosis, a buildup of fatty substances in the arteries. Less common, occurring only 20 % of the time, are hemorrhagic strokes, caused by bleeding in the brain, usually due to a structural anomaly in the blood vessels leading to the brain. Both can lead to the tragic effects of stroke we’ve all seen: difficulty moving, speaking and swallowing, personality changes, and so on.
Risk factors for stroke fall into two categories, those we can do nothing about, and those we can change. Among the former are age (the older you are, the greater the risk), gender (men are at higher risk than women, until menopause evens things out), family history, ethnicity (First Nations, South Asians and people of African descent have increased risk), and having a previous stroke or TIA (Transient Ischemic Attack, or mini-stroke).
More important for our purposes are the risk factors it is possible to alter, because it’s here that we can take steps to prevent stroke. Several of these risk factors are interconnected: if we make changes to improve one, positive results in the others are almost certain to occur. These are high blood pressure, high blood cholesterol, diabetes, being physically inactive and being overweight.
The first three need a doctor’s help to manage, and possibly medication to control. But all five of these risk factors will benefit from exercise and healthy eating. So be sure to get at least the minimum recommended amount of physical activity – 2 1/2 hours of moderate to vigorous activity each week (we at YWCA Hamilton can help with that!). And fuel all that movement with a healthy meal plan based on Canada’s Food Guide, featuring lots of vegetables and fruit, whole grains, lean proteins including beans, and cutting down (or out!) unhealthy fats, sugar and sodium.
Other risk factors within our power to change are excessive alcohol consumption, smoking, stress and atrial fibrillation. Avoid drinking more than two drinks a day, up to ten a week for women, or three per day, up to 15 a week for men. If you smoke, seek help to quit. Recent studies have shown that the body recovers from nicotine damage sooner than previously thought so the sooner you quit, the sooner you’ll reduce your risk of stroke (and heart disease and cancer. . .). If stress is an issue for you, figure out ways to reduce or at least better cope with it. And if you have atrial fibrillation, a fast and irregular heartbeat, be sure to follow your doctor’s treatment plan.
A key way to reduce stroke’s harm is to seek immediate medical help when stroke is suspected. Here are the warning signs that should prompt a call to 9-1-1, even if the problem is temporary:
• weakness or numbness in face, arm or leg, especially on one side
• trouble speaking, or confusion
• vision problems
• sudden headache
• dizziness, especially in combination with the other signs
More information is available from The Heart and Stroke Foundation at http://www.heartandstroke.com This website provides lots of information and support for people concerned about heart disease and stroke, including recipes, tips for getting more active, and a risk-assessment quiz.
The March of Dimes has a list of support groups for people who have suffered a stroke, or who live with someone who has, including the Hamilton Stroke Recovery Association and Halton Stroke Fellowship, at http://www.marchofdimes.ca/EN/programs/src/supportgroups/Pages/OntarioSupportGroups.aspx
Sources for this article include the
Heart and Stroke Foundation website: http://www.heartandstroke.com
and the National Institute of Neurological Disorders and Stroke website: http://www.ninds.nih.gov/disorders/stroke/preventing_stroke.htm
posted by Barb