Heart Disease 101
Heart disease is a broad term used to describe a range of
diseases that affect your heart. The various diseases that fall under the
umbrella of heart disease include diseases of your blood vessels, such as
coronary artery disease; heart rhythm problems (arrhythmias); heart infections;
and heart defects you're born with (congenital heart defects).
The term "heart disease" is often used interchangeably
with "cardiovascular disease." Cardiovascular disease generally
refers to conditions that involve narrowed or blocked blood vessels that can
lead to a heart attack, chest pain (angina) or stroke. Other heart conditions,
such as infections and conditions that affect your heart's muscle, valves or
beating rhythm, also are considered forms of heart disease.
Many forms of heart disease can be prevented or treated with
healthy lifestyle choices.
Heart disease risk factors include:
·
Your
age. Simply getting
older increases your risk of damaged and narrowed arteries and weakened or
thickened heart muscle, which contribute to heart disease.
·
Your
sex. Men are
generally at greater risk of heart disease. However, the risk for a woman
increases after menopause.
·
Family
history. A family history
of heart disease increases your risk of coronary artery disease, especially if
a parent developed it at an early age (before age 55 for a male relative, such
as your brother or father, and 65 for a female relative, such as your mother or
sister).
·
Smoking. Nicotine constricts your blood vessels,
and carbon monoxide can damage their inner lining, making them more susceptible
to atherosclerosis. Heart attacks are more common in smokers than in
nonsmokers.
·
Poor
diet. A diet that's
high in fat, salt and cholesterol can contribute to the development of heart
disease.
·
High
blood pressure. Uncontrolled
high blood pressure can result in hardening and thickening of your arteries,
narrowing the vessels through which blood flows.
·
High
blood cholesterol levels. High
levels of cholesterol in your blood can increase the risk of formation of plaques
and atherosclerosis. Plaques can be caused by a high level of low-density
lipoprotein (LDL) cholesterol, known as "bad" cholesterol, or a low
level of high-density lipoprotein (HDL) cholesterol, known as "good"
cholesterol.
·
Diabetes. Diabetes increases your risk of heart
disease. Both conditions share similar risk factors, such as obesity and high
blood pressure.
·
Obesity. Excess weight typically worsens other
risk factors.
·
Physical
inactivity. Lack of exercise
also is associated with many forms of heart disease and some of its other risk
factors, as well.
·
High
stress. Unrelieved
stress in your life may damage your arteries as well as worsen other risk
factors for heart disease.
·
Poor
hygiene. Not regularly
washing your hands and failure to establish other habits that can help prevent
viral or bacterial infections can put you at risk of heart infections,
especially if you already have an underlying heart condition. Poor dental
health also may contribute to heart disease.
Heart disease can be improved — or even
prevented — by making certain lifestyle changes. The following changes can help
anyone who wants to improve his or her heart health:
·
Stop
smoking. Smoking is a
major risk factor for heart disease, especially atherosclerosis. Nicotine
constricts blood vessels and forces your heart to work harder, and carbon
monoxide reduces oxygen in your blood and damages the lining of your blood
vessels. If you smoke, quitting is the best way to reduce your risk of heart
disease and its complications.
·
Control
your blood pressure. Ask your doctor
for a blood pressure measurement at least every two years. He or she may
recommend more frequent measurements if your blood pressure is higher than
normal or you have a history of heart disease. Optimal blood pressure is less
than 120 systolic and 80 diastolic, as measured in millimeters of mercury (mm
Hg).
·
Check
your cholesterol. Ask your doctor
for a baseline cholesterol test when you're in your 20s and then at least every
five years. If your test results aren't within desirable ranges, your doctor
may recommend more frequent measurements. Most people should aim for an LDL
level below 130 milligrams per deciliter (mg/dL), or 3.4 millimoles per liter
(mmol/L). If you have other risk factors for heart disease, your target LDL may
be below 100 mg/dL (2.6 mmol/L). If you're at very high risk of heart disease -
if you've already had a heart attack or have diabetes, for example - your
target LDL level is below 70 mg/dL (1.8 mmol/L).
·
Keep
diabetes under control. If
you have diabetes, tight blood sugar control can help reduce the risk of heart
disease.
·
Get
moving. If you have
heart disease, exercise helps you achieve and maintain a healthy weight and
control diabetes, elevated cholesterol and high blood pressure — all risk
factors for heart disease. If you have a heart arrhythmia or heart defect,
there may be some restrictions on the activities you can do, so be sure to talk
to your doctor first. With your doctor's OK, aim for 30 to 60 minutes of
physical activity most days of the week. Even if you can't make time for one
30- to 60-minute exercise session, you can still benefit from breaking up your
activity into several 10-minute sessions.
·
Eat
healthy foods. A heart-healthy
diet based on fruits, vegetables and whole grains — and low in saturated fat,
cholesterol and sodium — can help you control your weight, blood pressure and
cholesterol. Eating one or two servings of fish a week also is beneficial.
·
Maintain
a healthy weight. Being overweight
increases your risk of heart disease. Weight loss is especially important for
people who have large waist measurements — more than 40 inches (101.6
centimeters, or cm) for men and more than 35 inches (88.9 cm) for women —
because people with this body shape are more likely to develop diabetes and heart
disease.
·
Manage
stress. Reduce stress as
much as possible. Practice healthy techniques for managing stress, such as
muscle relaxation and deep breathing.
·
Practice
good hygiene habits. Staying away
from other people when they are sick and regularly washing your hands can not
only prevent heart infections but also can help prevent viral or bacterial
infections that can put stress on your heart if you already have heart disease.
Also, brushing and flossing your teeth regularly can prevent germs in your mouth
from making their way to plaques in your heart, which could worsen
cardiovascular disease.
·
Get
a flu shot. If you have
cardiovascular disease, you're at a greater risk of having a heart attack
should you catch the flu. Getting a flu shot decreases this risk.
In addition to healthy lifestyle changes,
remember the importance of regular medical checkups. Early detection and
treatment can set the stage for a lifetime of better heart health.
There are several alternative medicines that
may be effective in lowering cholesterol and preventing some types of heart
disease, including:
·
Blond psyllium
·
Coenzyme Q10
·
Flaxseed
·
Oats and oat bran
·
Omega-3 fatty acids
·
Plant stanols and
sterols, such as beta-sitosterol and sitostanol
As with any alternative medicine, talk to your
doctor before adding any new supplements to your treatment regimen. Even
natural medicines and herbal supplements can interact with medications you're
taking.
By the MAYO CLINIC