Diabetes can affect how your body reacts to exercise—a trainer explains how to adapt your workouts to manage blood sugar levels and work out safely

A man in sportwear pauses on a running track to look at his phone. He is wearing a blood glucose monitor on his right arm. .

Not knowing what to lift or how hard to push yourself during a workout is a common issue for those new to exercise.

But it’s all the more daunting for the 40 million or so Americans living with diabetes.