In general, blood sugar drops after exercise and is lower for the next 24 to 48 hours, says Movsas. "If I take a blood sugar reading after aqua-aerobics, I usually notice it's down," says David Mair, 79, of Marquette, Mich.
Even if you know exercise is good for you, it doesn't make it easy. Luckily, studies have shed light on the most successful exercise strategies for type 2 diabetes. Using a pedometer and aiming for 10,000 steps per day is one tried-and-true approach, although you need to determine what works best for you.