By Dr. Liji Thomas, MD Reviewed by Lauren Hardaker Oct 20 2025 A new study using continuous glucose monitors and wearable trackers uncovers a surprising twist in pregnancy health. This shows that more daily movement could mean higher overnight blood sugar, challenging assumptions about exercise and glucose control. Study: Daytime physical activity and nighttime glucose levels in individuals with pregnancy hyperglycemia: linking wearable activity trackers to continuous glucose monitoring . Image