Obesity is a health hazard.
Several serious medical conditions have been linked
to obesity, including type 2 diabetes, heart disease,
high blood pressure, and stroke. Obesity
is also linked to higher rates of certain types
of cancer. Approximately 280,000 adult deaths
in the United States each year are related to
obesity. Obese men are more likely than non-obese
men to die from cancer of the colon, rectum, or
prostate. Obese women are more likely than non-obese
women to die from cancer of the gallbladder, breast,
uterus, cervix, or ovaries. Childhood
Obesity is also highly prevalent in the United
States.
Obesity and Health Risks
:
Premature Death
- An estimated 300,000 deaths per year may
be attributable to obesity.
- The risk of death rises with increasing
weight.
- Even moderate weight excess (10 to 20 pounds
for a person of average height) increases
the risk of death, particularly among adults
aged 30 to 64 years.
- Individuals who are obese (BMI > 30)
have a 50 to 100% increased risk of premature
death from all causes, compared to individuals
with a healthy weight.
Type 2 Diabetes
- Type 2 diabetes used to be called adult-onset
diabetes or non insulin-dependent diabetes.
- Type 2 diabetes is a disease
in which blood sugar levels are above normal.
- High blood sugar is a major cause of early
death, heart disease, kidney disease, stroke,
and blindness.
- Being overweight causes cells to change,
making them less effective at using sugar
from the blood. This then puts stress on the
cells that produce insulin (a hormone that
carries sugar from the blood to cells) and
makes them gradually fail.
- A weight gain of 11 to 18 pounds increases
a person's risk of developing type 2 diabetes
to twice that of individuals who have not
gained weight.
- Over 80% of people with diabetes are overweight
or obese.
Heart Disease & Stroke
- Heart disease is the leading cause of death
in the U.S. , and stroke is the third leading
cause.
- Heart disease means that the heart and
circulation (blood flow) are not functioning
normally. If you have heart disease, you may
suffer from a heart attack, congestive heart
failure, sudden cardiac death, angina (chest
pain), or abnormal heart rhythm.
- During a stroke, blood and oxygen do not
flow normally to the brain, possibly causing
paralysis or death.
- Very high blood levels of cholesterol and
triglycerides (blood fats) can also lead to
heart disease and often are linked to being
overweight.
- A weight gain of 20 pounds doubles your
risk of heart disease.
Cancer
- Cancer is the second leading cause of death
in the U.S.
- Cancer occurs when cells in one part of
the body grow abnormally or out of control
and possibly spread to other parts of the
body.
- Being overweight may increase the risk
of developing several types of cancer, like
cancers of the colon, esophagus, and kidney,
uterine and postmenopausal breast cancer in
women.
- Being overweight might cause the fat cells
to make hormones that affect cell growth and
lead to cancer.
Hyperlipidemia
- High cholesterol(Hyperlipidemia)
is caused by the build up of excess fatty
substances in the artery walls.
- Genetic factors, mental stress, physical
activities, changes in weight also influence
the level of blood cholesterol.
- When you have high
cholesterol, plague build up on the
walls of the arteries causing atherosclerosis.
- The arteries narrow and harden, reducing
blood flow to your heart.
- Less blood and oxygen supply in your heart
implies more chances of heart attacks or
chest pains.
Sleep Apnea
- Sleep apnea is a condition in which a person
stops breathing for short periods during the
night.
- A person who has sleep apnea may suffer
from daytime sleepiness, difficulty concentrating,
and even heart failure.
- An overweight person may have more fat
stored around his or her neck. This may make
the airway smaller making breathing difficult,
loud (snoring), or stop altogether. In addition,
fat stored in the neck and throughout the
body can produce substances that cause inflammation.
Inflammation in the neck may be a risk factor
for sleep apnea.
Osteoarthritis
- Osteoarthritis is a common joint disorder.
With osteoarthritis, the joint bone and cartilage
(tissue that protects joints) wear away. Osteoarthritis
most often affects the joints of the knees,
hips, and lower back.
- Extra weight may place extra pressure on
joints and cartilage, causing them to wear
away.
- In addition, people with more body fat may
have higher blood levels of substances that
cause inflammation. Inflammation at the joints
may raise the risk for osteoarthritis.
- The symptoms of osteoarthritis - pain, stiffness
and loss of mobility are worse in very overweight
people as joints are put under pressure.
- For every 2-pound increase in weight, the
risk of developing arthritis is increased
by 9 to 13%.
Gallstones
- Gallstones are clusters of solid material
that form in the gallbladder. They are made
mostly of cholesterol and can sometimes cause
abdominal or back pain.
- Being overweight and eating a diet high
in fat, particularly saturated fat, is a major
contributor to the formation of gallstones.
Overweight people may produce more cholesterol,
a risk factor for gallstones.
- Overweight people may have an enlarged
gallbladder, which may not work properly.
- Symptoms of gallstones include severe pain
in the upper right abdomen which often seems
to spread to the right shoulder.
Liver Disease
- Fatty liver disease occurs when fat builds
up in the liver cells and causes injury and
inflammation in the liver.
- It can sometimes lead to severe liver damage,
cirrhosis (build-up of scar tissue that blocks
proper blood flow in the liver), or even liver
failure.
Gout
- Gout is a joint disease caused by high levels
of uric acid in the blood.
- Uric acid sometimes forms into solid stone
or crystal masses that get deposited in the
joints.
- It is more common in overweight people and
the risk of developing the disorder increases
with higher body weights.
Reproductive Problems
in Women
- Obese women experience menstrual irregularities
and infertility.
- Obesity during pregnancy is associated with
increased risk of death in both the baby and
the mother and increases the risk of maternal
high blood pressure by 10 times.
- Obese women during pregnancy are more likely
to have gestational diabetes and problems
with labor and delivery.
- Infants born to obese are more likely to
be high birthweight and, therefore, may face
a higher rate of Cesarean section delivery
and low blood sugar (which can be associated
with brain damage and seizures).
- Obesity during pregnancy is associated with
an increased risk of birth defects, particularly
neural tube defects, such as spina bifida.
Psychological and Social
Effects
- Emotional suffering may be one of the most
painful parts of obesity. In a society, which
idolizes slimness, overweight people feel
unattractive.
- Obese people often face prejudice or discrimination
in the job market, at school, and in social
situations. Feelings of rejection, shame,
or depression are common.
High Blood Pressure
- Being overweight is an important risk factor
for high blood pressure.
- For example, if you are 20% overweight
(i.e. obese), you are eight times more likely
to suffer from high blood pressure than someone
of normal weight.
Varicose Veins
- Varicose veins are veins that permanently
dilate because the valves in the veins have
weakened. Blood pools in the veins instead
of being pumped back around the body.
- Excess weight contributes to varicose veins
and losing weight is a good way to treat them.
Urinary Stress Incontinence.
A large, heavy abdomen and relaxation
of the pelvic muscles, especially associated with
the effects of childbirth, may cause the valve
on the urinary bladder to be weakened, leading
to leakage of urine with coughing, sneezing, or
laughing.
A healthy diet and regular physical
activity are both important for maintaining a
healthy weight. Over time, even a small decrease
in calories eaten and a small increase in physical
activity can help prevent weight gain or facilitate
weight loss.
It is recommended that obese
individuals should try to lose substantial amounts
of weight.
Click here at How
Is Obesity Measured?
Reference:-
Obesity |