During the last festive period, a woman
in her middle age developed partial stroke and was admitted in the
hospital. She recovered fully but the family felt that the problem might
not be stroke since the woman’s blood pressure had never been high and
her blood sugar level had always been within the normal range, meaning
she was not hypertensive or diabetic.
Her blood sample, which was sent to the
lab for investigations, showed elevated blood cholesterol, a condition
called hypercholesterolemia. It was later found that high cholesterol
was responsible for the first stroke she suffered.
Hypercholesterolemia, or high
cholesterol, occurs when there is too much cholesterol in the body.
Cholesterol is a soft, waxy, fat-like substance that is a natural
component of all the cells in the body. The body makes all the
cholesterol it needs. However, added cholesterol, which comes from the
foods eaten, may cause harm.
High cholesterol raises the risk for
heart disease, heart attack, and stroke. When there is too much
cholesterol circulating in the blood, it can create sticky deposits
(called plaque) along the artery walls. Plaque can eventually narrow or
block the flow of blood to the brain, heart, and other organs. Blood
cells that get caught on the plaque form clots, which can break loose
and completely block blood flow through an artery, causing heart attack
or stroke.
While heredity may be a factor for some
people, the main culprits are lack of exercise and diets high in
saturated fat. High cholesterol can be prevented, sometimes with
lifestyle changes (diet and exercise) alone. If these do not work, your therapist may recommend some special fruits and vegetables that are anti-cholestrols.
In the early stages, there are usually
no symptoms of high cholesterol. The only way to tell if the cholesterol
is high is through a blood test.
In some cases, high cholesterol levels
may be inherited; the liver may make too much cholesterol, or the body
may not remove bad cholesterol from the blood efficiently. High
cholesterol and elevated triglycerides can also be associated with other
diseases, such as diabetes. But often, high cholesterol is caused by
eating foods high in saturated fat and not getting enough exercise. High
cholesterol is more common in people who are overweight or obese.
Being
overweight or obese, eating a diet high in saturated fat and trans fatty
acids (found in processed and fried foods); not getting enough
exercise; family history of heart disease; high blood pressure; smoking;
and diabetes.
Most people
do not have any symptoms of high cholesterol. A blood test is the only
way to check levels of cholesterol in the blood. If the levels are above
200 mg/dL, the doctor will do a fasting lipid profile, a test performed
after you abstain from food for nine to 12 hours.
A lipid test generally determines four
distinct numbers: total cholesterol, LDL, HDL and triglycerides. The LDL
or low-density lipoprotein and the HDL or high-density lipoprotein are
the two fundamental “cholesterol types”. The LDL is known to be negative
(bad) when in excess. Therefore, minimising it will be much better.
HDL, known to be the positive (good), is better when elevated. In
addition, the lipid profile appraises the triglycerides (whole fat in a
person’s body). They have an impact on the health in the same manner
cholesterol does. At last, the total cholesterol (sum of HDL, LDL and 20
per cent of triglycerides) is integrated as well in the results.
It is important to say at this juncture
that people with chronic conditions like hypertension, diabetes,
obesity, among others, should have their lipids check periodically.
Have your blood checked today. By JOHNSON OKPUSA OBASI
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