Apparent age

1 paper3 findings

Interventions

Pregnancy

upin humans1downin humans1

1 study

Pregnancy increases apparent age in humans (+20 years).
“rose by 20 years toward delivery, and recovered postpartum.”
Humanstoward deliveryfemales
Pregnancy lab test dynamics resemble rejuvenation of some organs and aging of others
Nature communications16 Feb 2026
Pregnancy decreases apparent age in humans (-5 years).
“pregnant females' apparent age dropped by 5 years in the first trimester, rose by 20 years toward delivery, and recovered postpartum.”
Humansfirst trimesterfemales
Pregnancy lab test dynamics resemble rejuvenation of some organs and aging of others
Nature communications16 Feb 2026

Pregnancy complications

upin humans1

1 study

Pregnancy complications increase apparent age in humans (2-6 years).
“Pregnancy complications increased apparent age by 2-6 years.”
Humansfemales
Pregnancy lab test dynamics resemble rejuvenation of some organs and aging of others
Nature communications16 Feb 2026