What is type 2 diabetes?
How can type 2 diabetes be prevented?
Signs and symptoms of type 2 diabetes?
Types of Diabetes
Should I be tested for diabetes?
What does it mean to have pre-diabetes?
Other factors that may increase my risk for type 2 diabetes
Doing My Part: Getting Started
Hope Through Research
Staying Healthy from Head to Toe
What is type 2 diabetes?
Diabetes is a disease in which blood glucose levels are above normal. People
with diabetes have problems converting food to energy. After a meal, food is
broken down into a sugar called glucose, which is carried by the blood to cells
throughout the body. Cells use the hormone insulin, made in the pancreas, to
help them process blood glucose into energy.
People develop type 2 diabetes because the cells in the muscles, liver, and fat
do not use insulin properly. Eventually, the pancreas cannot make enough insulin
for the body’s needs. As a result, the amount of glucose in the blood increases
while the cells are starved of energy. Over the years, high blood glucose
damages nerves and blood vessels, leading to complications such as heart
disease, stroke, blindness, kidney disease, nerve problems, gum infections, and
amputation.
How can type 2 diabetes be prevented?
Although people with diabetes can prevent or delay complications by keeping
blood glucose levels close to normal, preventing or delaying the development of
type 2 diabetes in the first place is even better. The results of a major
federally funded study, the Diabetes Prevention Program (DPP), show how to do
so. This study of 3,234 people at high risk for diabetes showed that moderate
diet and exercise resulting in a 5- to 7-percent weight loss can delay and
possibly prevent type 2 diabetes.
Study participants were overweight and had higher than normal levels of blood
glucose, a condition called pre-diabetes (impaired glucose tolerance). Both
pre-diabetes and obesity are strong risk factors for type 2 diabetes.
Am I at Risk for Type 2 Diabetes?
Because of the high risk among some minority groups, about half of the DPP
participants were African American, American Indian, Asian American, Pacific
Islander, or Hispanic American/Latino. The DPP tested two approaches to
preventing diabetes: a healthy eating and exercise program (lifestyle changes),
and the diabetes drug metformin. People in the lifestyle modification group
exercised about 30 minutes a day 5 days a week (usually by walking) and lowered
their intake of fat and calories. Those who took the diabetes drug metformin
received standard information on exercise and diet. A third group received only
standard information on exercise and diet.
The results showed that people in the lifestyle modification group reduced their
risk of getting type 2 diabetes by 58 percent. Average weight loss in the first
year of the study was 15 pounds. Lifestyle modification was even more effective
in those 60 and older. They reduced their risk by 71 percent. People receiving
metformin reduced their risk by 31 percent.
What are the signs and symptoms of type 2
diabetes?
Many people have no signs or symptoms. Symptoms can also be so mild that you
might not even notice them. Nearly six million people in the United States have
type 2 diabetes and do not know it.
Here is what to look for:
- increased thirst
- increased hunger
- fatigue
- increased urination, especially at night
- weight loss
- blurred vision
- sores that do not heal
Types of Diabetes
The three main kinds of diabetes are type 1, type 2, and gestational diabetes.
Type 1 Diabetes
Type 1 diabetes, formerly called juvenile diabetes or insulindependent diabetes,
is usually first diagnosed in children, teenagers, or young adults. In this form
of diabetes, the beta cells of the pancreas no longer make insulin because the
body’s immune system has attacked and destroyed them. Treatment for type 1
diabetes includes taking insulin shots or using an insulin pump, making wise
food choices, exercising regularly, taking aspirin daily (for some), and
controlling blood pressure and cholesterol.
Type 2 Diabetes
Type 2 diabetes, formerly called adult-onset or noninsulindependent diabetes, is
the most common form of diabetes. People can develop type 2 diabetes at any age,
even during childhood. This form of diabetes usually begins with insulin
resistance, a condition in which fat, muscle, and liver cells do not use insulin
properly. At first, the pancreas keeps up with the added demand by producing
more insulin. In time, however, it loses the ability to secrete enough insulin
in response to meals. Being overweight and inactive increases the chances of
developing type 2 diabetes. Treatment includes taking diabetes medicines, making
wise food choices, exercising regularly, taking aspirin daily, and controlling
blood pressure and cholesterol.
Gestational Diabetes
Some women develop gestational diabetes during the late stages of pregnancy.
Although this form of diabetes usually goes away after the baby is born, a woman
who has had it is more likely to develop type 2 diabetes later in life.
Gestational diabetes is caused by the hormones of pregnancy or a shortage of
insulin.
Am I at Risk for Type 2 Diabetes?
Sometimes people have symptoms but do not suspect diabetes. They delay
scheduling a checkup because they do not feel sick. Many people do not find out
they have the disease until they have diabetes complications, such as blurry
vision or heart trouble. It is important to find out early if you have diabetes
because treatment can prevent damage to the body from diabetes.
Should I be tested for diabetes?
Anyone 45 years old or older should consider getting tested for diabetes. If you
are 45 or older and overweight (see BMI chart on pages 10 and 11), it is
strongly recommended that you get tested. If you are younger than 45,
overweight, and have one or more of the risk factors on page 5, you should
consider testing. Ask your doctor for a fasting blood glucose test or an oral
glucose tolerance test. Your doctor will tell you if you have normal blood
glucose, pre-diabetes, or diabetes.
What does it mean to have pre-diabetes?
It means you are at risk for getting type 2 diabetes and heart disease. The good
news is if you have pre-diabetes you can reduce the risk of getting diabetes and
even return to normal blood glucose levels. With modest weight loss and moderate
physical activity, you can delay or prevent type 2 diabetes. If your blood
glucose is higher than normal but lower than the diabetes range (what we now
call pre-diabetes), have your blood glucose checked in 1 to 2 years.
Doing My Part: Getting Started
Making big changes in your life is hard, especially if you are faced with more
than one change. You can make it easier by taking these steps:
- Make a plan to change behavior.
- Decide exactly what you will do and when you will do it.
- Plan what you need to get ready.
- Think about what might prevent you from reaching your
goals.
- Find family and friends who will support and encourage you.
- Decide how you will reward yourself when you do what you
have planned.
Your doctor, a dietitian, or a counselor can help you make a plan. Here are some
of the areas you may wish to change to reduce your risk of diabetes.
Reach and Maintain a Reasonable Body Weight
Your weight affects your health in many ways. Being overweight can keep your
body from making and using insulin properly. It can also cause high blood
pressure. The DPP showed that losing even a few pounds can help reduce your risk
of developing type 2 diabetes because it helps your body use insulin more
effectively. In the DPP, people who lost between 5 and 7 percent of their body
weight significantly reduced their risk of type 2 diabetes. For example, if you
weigh 200 pounds, losing only 10 pounds could make a difference.
Body mass index (BMI) is a measure of Body mass index (BMI) is a measure of body weight relative to height. You can
use BMI to see whether you are underweight, normal weight, overweight, or obese.
Click here to view the BMI table.
- Find your height in the left-hand column.
- Move across in the same row to the number closest to your weight.
- The number at the top of that column is your BMI. Check the word above your BMI
to see whether you are normal weight, overweight, or obese.
If you are overweight or obese, choose sensible ways to get in shape:
- Avoid crash diets. Instead, eat less of the foods you usually have. Limit the
amount of fat you eat.
- Increase your physical activity. Aim for at least 30 minutes of exercise most
days of the week.
- Set a reasonable weight-loss goal, such as losing 1 pound a week. Aim for a
long-term goal of losing 5 to 7 percent of your total body weight.
Make Wise Food Choices Most of the Time
What you eat has a big impact on your health. By making wise food choices, you
can help control your body weight, blood pressure, and cholesterol.
- Take a hard look at the serving sizes of the foods you eat. Reduce serving sizes
of main courses (such as meat), desserts, and foods high in fat. Increase the
amount of fruits and vegetables.
- Limit your fat intake to about 25 percent of your total calories. For example,
if your food choices add up to about 2,000 calories a day, try to eat no more
than 56 grams of fat. Your doctor or a dietitian can help you figure out how
much fat to have. You can check food labels for fat content too.
- You may also wish to reduce the number of calories you have each day. People in
the DPP lifestyle modification group lowered their daily calorie total by an
average of about 450 calories. Your doctor or dietitian can help you with a meal
plan that emphasizes weight loss.
- Keep a food and exercise log. Write down what you eat, how much you
exercise—anything that helps keep you on track.
- When you meet your goal, reward yourself with a nonfood item or activity, like
watching a movie.
Be Physically Active Every Day
Regular exercise tackles several risk factors at once. It helps you lose weight,
keeps your cholesterol and blood pressure under control, and helps your body use
insulin. People in the DPP who were physically active for 30 minutes a day 5
days a week reduced their risk of type 2 diabetes. Many chose brisk walking for
exercise.
If you are not very active, you should start slowly, talking with your doctor
first about what kinds of exercise would be safe for you. Make a plan to
increase your activity level toward the goal of being active at least 30 minutes
a day most days of the week. Choose activities you enjoy. Here are some ways to
work extra activity into your daily routine:
- Take the stairs rather than an elevator or escalator.
- Park at the far end of the lot and walk.
- Get off the bus a few stops early and walk the rest of the way.
- Walk or bicycle instead of drive whenever you can.
Take Your Prescribed Medications
Some people need medication to help control their blood pressure or cholesterol
levels. If you do, take your medicines as directed. Ask your doctor whether
there are any medicines you can take to prevent type 2 diabetes.
Hope Through Research
We now know that many people can prevent type 2 diabetes through weight loss,
regular exercise, and lowering their intake of fat and calories. Researchers are
intensively studying the genetic and environmental factors that underlie the
susceptibility to obesity, pre-diabetes, and diabetes. As they learn more about
the molecular events that lead to diabetes, they will develop ways to prevent
and cure the different stages of this disease. People with diabetes and those at
risk for it now have easier access to clinical trials that test promising new
approaches to treatment and prevention. For information about current studies,
see
http://ClinicalTrials.gov.
Diabetes - Staying healthy from head to toe
If you have diabetes, controlling your sugar is always the first priority. A
healthy diet, regular exercise and good medical care can help. When your blood
sugar is under control you’re also at lower risk for complications from
diabetes. High blood sugar levels can damage your nerves and blood vessels. When
levels are too high it can cause damage and disease in your eyes, teeth and
feet. That’s why these parts of your body need special care, according to the
American Diabetes Association.
Eyes. To keep your eyes healthy, get an eye exam every year.
You should also go to the doctor if:
- Your vision gets blurry.
- You see double.
- Your eyes hurt.
- You see spots.
Teeth and gums. Have your teeth cleaned and checked every 6
months. Brush your teeth, front and back, twice daily with a soft brush. Floss
once a day. See your dentist if you notice any problems with your gums or teeth.
Feet. Wash and dry your feet every day. Use lotion to keep the
skin from drying out.
Check every day for sores, blisters, calluses or swelling. Don’t try to treat
calluses or corns at home. See your doctor. Cut toenails straight across. Look
for sharp edges—they can cut your Check shoes inside and out for sharp objects
before you put them on. Pebbles, nails or even a torn shoe lining could cause
problems.
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