The arrival of summer brings longer days, warmer weather, and a natural invitation to spend more time outdoors. For individuals living with diabetes, staying active is a cornerstone of health management, offering significant benefits for blood glucose control, cardiovascular health, and overall well-being. However, the summer heat and changes in routine can also present unique challenges. This guide will help you navigate summer activities safely and enjoyably, ensuring your diabetes management stays on track while you embrace the season.
Key takeaways
- Use your own glucose targets, medication plan, and trend data when planning activity.
- Carry fast-acting carbohydrate if you use insulin or medicines that can cause low blood glucose.
- Start gradually and ask your care team about limits if you have neuropathy, eye, kidney, or heart disease.
Why this matters when you live with diabetes
Regular physical activity is incredibly beneficial for people with diabetes. It improves insulin sensitivity, helps manage weight, lowers blood pressure, and reduces the risk of heart disease. During exercise, your muscles use glucose for energy, which can lead to lower blood sugar levels. This effect can last for up to 24 hours or more after your workout. However, these changes also mean you need to be extra mindful of your glucose levels, especially if you use insulin or medications that can cause hypoglycemia. The summer heat can further complicate matters, affecting hydration and how your body uses insulin.
What to do before you start
Preparation is key to a successful and safe summer activity plan. Before lacing up your shoes or heading to the pool, consider these important steps:
- Consult Your Healthcare Team: Always discuss any new exercise routine or significant changes to your activity level with your doctor or diabetes educator. They can help you adjust medication dosages, especially insulin, to prevent hypoglycemia or hyperglycemia during and after exercise.
- Check Blood Glucose: Test your blood sugar before, during (for longer activities), and after exercise. This helps you understand how different activities affect your levels and allows you to make timely adjustments. The American Diabetes Association notes that carbohydrate intake, ketone checks, and exercise timing should depend on glucose level, diabetes type, medicines, and individual risk. If glucose is below your personal safe range or very high with ketones or symptoms, follow your care team’s exercise plan.
- Hydrate Adequately: Summer heat increases the risk of dehydration, which can impact blood sugar levels. Drink plenty of water before, during, and after your activities. Carry a water bottle with you and sip regularly, even if you don’t feel thirsty.
- Pack Smart: Always carry your diabetes supplies, including glucose monitoring devices, fast-acting carbohydrates (like glucose tablets or juice) for treating lows, and any necessary medications. Keep them protected from direct sunlight and extreme heat.
- Warm-up and Cool-down: Just like any other time of year, begin your activity with a 5-10 minute warm-up of light cardio and stretching, and end with a 5-10 minute cool-down. This helps prepare your body and prevent injuries.
Practical steps you can use this week
Summer offers a fantastic variety of activities. Here’s how to incorporate them into your routine, with options for different fitness levels:
Beginner-Friendly Activities
- Walking: A simple yet effective way to get moving. Start with short, brisk walks in the morning or evening to avoid the midday heat. Gradually increase your duration and pace.
- Gardening: Light gardening tasks like weeding, planting, and watering can provide gentle physical activity.
- Swimming or Water Aerobics: Water activities are excellent for staying cool while exercising. The buoyancy of water can also be beneficial for joints.
Moderate Activities
- Cycling: Explore local parks or bike paths. Remember to wear a helmet and carry your diabetes supplies.
- Hiking: Choose trails with moderate inclines and be aware of your surroundings. Inform a companion about your diabetes.
- Team Sports: Joining a casual game of volleyball or badminton can be a fun way to stay active and social.
Advanced Activities
- Running: If you’re an experienced runner, continue your routine but be extra vigilant about hydration and glucose monitoring in the heat.
- Intense Cycling or Swimming: Longer distances or higher intensity can be achieved with careful planning and consistent glucose checks.
- Resistance Training: Continue your strength training routine, perhaps moving it indoors during the hottest parts of the day.
Regardless of your chosen activity, pay attention to your body’s signals. If you use a Continuous Glucose Monitor (CGM), observe trends during and after exercise. If you rely on fingerstick checks, test more frequently than usual. Remember that increased insulin sensitivity from exercise can lead to delayed hypoglycemia, so monitor your glucose for several hours post-activity.
When to call your healthcare professional
While staying active is encouraged, it’s crucial to recognize when you might need medical attention. Contact your healthcare professional if you experience any of the following:
- Frequent or severe episodes of hypoglycemia (low blood sugar) that are difficult to manage.
- Persistent hyperglycemia (high blood sugar) despite medication adjustments.
- Symptoms of dehydration, such as extreme thirst, dizziness, dark urine, or reduced urination.
- Heat-related illnesses like heat exhaustion (heavy sweating, weakness, cold/clammy skin, fast/weak pulse, nausea, fainting) or heatstroke (high body temperature, hot/red/dry or damp skin, strong/rapid pulse, confusion, unconsciousness – this is a medical emergency, call 911 immediately).
- New or worsening pain, numbness, or tingling in your feet or legs, which could indicate nerve damage.
- Any unusual symptoms or concerns related to your diabetes management during physical activity.
Questions to ask at your next visit
To optimize your summer activity plan, consider asking your healthcare team these questions:
- “How should I adjust my insulin or medication doses on days I plan to be more active?”
- “What are the best strategies for preventing low blood sugar during and after exercise, especially in warm weather?”
- “Are there any specific activities I should avoid given my current health status or diabetes complications?”
- “What are the signs of dehydration or heat-related illness I should watch out for, and what should I do if I experience them?”
- “Can you recommend any resources for finding diabetes-friendly exercise programs or support groups in my area?”
Medical note: This article is for education only and does not replace care from your healthcare professional. If you use insulin or medicines that can cause low blood glucose, are pregnant, have kidney disease, heart disease, vision problems, neuropathy, or other diabetes-related complications, discuss changes to food, activity, medicines, devices, or travel plans with your diabetes care team.