Diabetes in Older People (2024)

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Diabetes is a serious disease that affects many older adults. Diabetes occurs when a person’s blood glucose, also called blood sugar, is too high. The good news is that you can take steps to delay or prevent type 2 diabetes, which is the most common form of the disease to develop in older adults. If you already have diabetes, there are ways to manage the condition and help prevent diabetes-related health problems.

What is diabetes?

Glucose is the body’s main source of energy. Our bodies can make glucose, and glucose also comes from the food we eat. To use glucose as energy, the body needs insulin, a hormone that helps glucose get into cells. If you have diabetes, your body may not make enough insulin, use insulin in the right way, or both. That can cause too much glucose to stay in the blood, which can cause health problems over time.

Types of diabetes

The main types of diabetes in older adults are type 1 and type 2:

• Type 1 diabetes: In this form of diabetes, the body makes little or no insulin. Although older adults can develop type 1 diabetes, it begins most often in children and young adults, who then have diabetes for life. People with type 1 diabetes need to take insulin every day.
• Type 2 diabetes: In this condition, the most common form of diabetes, the body’s cells don’t use insulin properly. It occurs most often in middle-aged and older adults, but it can also affect children. Your chance of developing type 2 diabetes is higher if you have risk factors such as overweight or obesity, an inactive lifestyle, a family history of diabetes, or a history of gestational diabetes (a type of diabetes that develops during pregnancy). People who are African American, American Indian, Asian American, Hispanic/Latino, or Pacific Islander also have a higher risk of developing type 2 diabetes than people from other backgrounds.

Prediabetes is a condition that occurs when glucose levels are higher than normal but not high enough to be diagnosed as diabetes. Millions of older Americans have prediabetes. Although people with prediabetes have a greater chance of developing type 2 diabetes, there are ways to help prevent or delay the disease. These include maintaining a healthy weight, exercising, having your glucose level checked regularly, and talking with your doctor about medications and lifestyle changes that may help reduce your risk.

Symptoms of diabetes

Symptoms of diabetes may include feeling tired, increased hunger or thirst, losing weight without trying, urinating often, and numbness or tingling in hands or feet. You may also get blurred vision and skin infections, and your body may heal more slowly from cuts and bruises.

In people with type 2 diabetes, symptoms often develop slowly and may go unnoticed for a long time. Some people with type 2 diabetes have no symptoms, and they only find out that they have the condition when other diabetes-related health problems develop.

Sometimes older adults dismiss the symptoms of diabetes as just part of “getting old,” but they can be signs of a serious problem. Talk with your doctor if you have any symptoms or are concerned about developing diabetes.

Tests for diabetes

If you have symptoms or risk factors for diabetes, it’s important to get tested. Getting an early diagnosis can help you manage your diabetes and may prevent health problems. Doctors use several blood tests to help diagnose diabetes:

• The fasting plasma glucose test measures your blood glucose at a single point in time. Most of the time, your doctor will give you the test in the morning after you have fasted (had nothing to eat or drink except water) for at least eight hours.
• The A1C test shows your average blood glucose level over the past three months. You can eat and drink before this test. The A1C test may not be accurate in people with certain other diseases and conditions, so your doctor may use other tests in addition to A1C to diagnose diabetes.
• The random plasma glucose test also measures your blood glucose at a single point in time. It is given at any time during the day and does not require fasting.
• The oral glucose tolerance test has two steps: first, your blood glucose level is tested after you have fasted overnight. Then you drink a sugary drink and have your blood glucose level tested again two hours later. if your glucose level is high, you may have diabetes.

If a blood test suggests you have diabetes, your doctor may do a second blood test to confirm the diagnosis.

Managing type 2 diabetes

A person with diabetes may need to manage the disease with lifestyle changes, medication, or both. Many people with type 2 diabetes can manage their blood glucose levels with diet and exercise alone. Others may need diabetes pills or insulin injections, along with medicines to manage other conditions like high blood pressure and high cholesterol. Ask your health care provider questions about your medications to make sure you understand how they work, how to take them, and what side effects may occur.

• Diabetes and brain health

  If you have diabetes, your doctor may screen you for depression or cognitive impairment. Older adults with diabetes are at higher risk for these conditions compared to others their age who do not have diabetes. Having depression or cognitive impairment can make diabetes self-care challenging.

• Help with diabetes costs

  Both private health insurance and government programs (such as Medicare, Medicaid, and veterans’ health care) may help pay for the cost of diabetes care. If you are choosing a health insurance plan or trying to understand your coverage better, ask for a Summary of Benefits and Coverage, which explains the coverage in plain language. It can help you find out how much the plan pays for diabetes medications, supplies and devices (such as an insulin pump,) and visits to see medical specialists. You can also learn about the copayments and deductibles you’ll need to pay out of pocket.

  Don’t hesitate to tell your health care team if you have trouble paying for your diabetes medicines and supplies. Ask if there are less expensive options or generic versions of the medicines you need for managing diabetes, high blood pressure, high cholesterol, or other medical conditions.

  Learn about other ways to help pay for diabetes medications and supplies.

For more information about diabetes

Centers for Disease Control and Prevention (CDC)
800-232-4636
888-232-6348 (TTY)
cdcinfo@cdc.gov
www.cdc.gov

This content is provided by the NIH National Institute on Aging (NIA). NIA scientists and other experts review this content to ensure it is accurate and up to date.

Content reviewed: April 10, 2024