Pregnant women who do not eat breakfast tend to go to bed and wake up later and prefer evening activities, which may reflect a general shift in their daily biological rhythm rather than just a choice about meals.

Pregnant women who do not eat breakfast tend to have lower levels of cortisol in the morning during the second and third trimesters of pregnancy, suggesting a link between skipping this meal and a reduced stress hormone response upon waking.

Pregnant women in their second trimester who skip breakfast show a larger daily fluctuation in cortisol levels compared to those who eat breakfast, which may indicate a stronger but less stable pattern of stress hormone release.

Chronic skipping of breakfast disrupts circadian rhythms, leading to dysregulation of cortisol secretion and impaired insulin sensitivity.

Skipping breakfast every day is associated with consistently eating fewer calories and altered timing of cortisol release, which can reduce the body's ability to align its internal clock with daylight cycles.

Skipping breakfast may raise your chances of having high blood pressure, even after accounting for other health factors.