Physical activity can lower your blood sugar up to 24 hours or more after your workout by making your body more sensitive to insulin.
Why would blood sugar be high after exercise?
Why does exercise sometimes raise blood sugar? Exercise can trigger the body to release stress hormones, like adrenaline and cortisol. Adrenaline can stimulate the liver and the adrenal glands to release glucose and cortisol which makes you more resistant to insulin.
Does exercising raise or lower blood sugar?
Exercise draws on reserve sugar stored in your muscles and liver. As your body rebuilds these stores, it takes sugar from your blood. The more strenuous your workout, the longer your blood sugar will be affected. Low blood sugar is possible even four to eight hours after exercise.
Why is my blood sugar high after walking?
“What happens with exercise is that glucose-raising hormones are released to help pump up the amount of BG being released to match what your active muscles are using.” Colberg admits, “The system isn’t perfect, though, and doing intense activity causes an exaggerated release of these hormones.