How does working out change blood sugar?
When you work out, your body needs more energy, which it gets from the blood sugar, which is also called glucose.
When you move quickly, like when you run to catch the bus, your muscles and liver let out glucose to give you energy.
Most of the time, exercise lowers your levels. If you take insulin or diabetes medicine and your workouts get harder or longer, you may need to change your snacks, your medicine, or both. Talk with your doctor about what you should do.
When you do moderate exercise for a long time, like going on a walk, you get the most out of it. When you do that, your muscles take in a lot more glucose. This helps lower the amount of sugar in your blood. If you work out hard, your blood sugar levels may temporarily rise when you stop.
When you work out too hard, it makes it harder for your muscle cells to use insulin. This can cause your blood sugar to rise. Small tears in the muscle fibers that happen when you work out give you a boost. When your muscles heal, they get stronger. But if you aren't used to hard workouts like HIIT (high-intensity interval training), you could overdo it. During that time, your muscle cells can't use insulin as well, which will raise your blood sugar.
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It could also go up if you don't work out. If you're so sore that you can't go to the gym, you probably need to take it easy. There's no need to hurry. As you get used to a new routine, it's better to increase the intensity slowly. If you don't feel like you've been through the wringer, you're more likely to stick with it.