Pregnancy is a critical period for cardiovascular health risk assessment and interventions to reduce the incidence of cardiovascular disease in both mother and child generations. Recently, the American Heart Association proposed the latest cardiovascular health assessment indicator "Life's Essential 8". However, there is still a lack of application data for pregnant women. This project intends to explore the application potential of Life's Essential 8 in cardiovascular health assessment of pregnant women and establish appropriate gestaional cardiovascular health standards.

Inclusion Criteria:

• Maternal age: 20-49 years;
• Natural conception;
• Single pregnancy;
• Plan to have routine prenatal examinations and give birth in the research center;

Exclusion Criteria:

• Have diseases that affect metabolic function or even threaten the life of the mother and fetus before pregnancy;
• Assisted reproduction;
• Multiple pregnancy;
• Fetus has a known deformity or genetic defects;
• Incomplete clinical data.

This project intends to recruit pregnant women who go to the research center for routine prenatal examination and give birth.