Activity, Sleep and Insulin Sensitivity

Insulin sensitivity means how well your cells respond to insulin. Insulin is a hormone, a messenger your body makes. It helps move sugar from your blood into your cells.

Think of insulin as a key and your cells as locks. When sensitivity is good, the key turns easily. When it is lower, the key sticks. So sugar can stay in your blood longer.

Your muscles act like sponges. Regular activity helps them soak up blood sugar.

Moderate activity makes you breathe harder, but you can still talk. The recommended minimum is 150 minutes a week, plus two strength sessions.

One session may help insulin work better for about 24 hours. Sources differ on the exact length.

Short or poor sleep can make insulin work less well. One small study found a drop after one short night. That is group data, so it may not match each person.

Regularly sleeping under six hours a night has been linked to higher A1C. A1C is a percent, like a 3 month report card for your average blood sugar.

Key takeaways

• Insulin sensitivity is how well your cells respond to insulin.
• Regular activity helps muscles take up blood sugar, and 150 minutes a week is the recommended minimum.
• Short or poor sleep can make insulin work less well.

Try it

Today, notice whether you can still talk while you move, and note how many minutes that was. Talk to your doctor before you change your activity or routine.