cortisol

This shows a pregnant woman

Stress during pregnancy may affect baby’s sex and risk of preterm birth

Stress and depression during pregnancy can affect the fetus' sex and increase the risk of preterm birth. Mothers who experienced physical and psychological stress during pregnancy were less likely to have a baby boy. During pregnancy, the fetuses of stressed mothers had reduced heart rate movement coupling, indicating slower central nervous system development.... Read More...
This shows a cute, but scruffy dog

Dogs mirror owner’s stress

Researchers identify an interspecies correlation between hair cortisol concentrations in humans and dogs during summer and winter months. The cortisol levels were not affected by the amount of activity the dog had during these periods. The study reveals a seasonal effect in higher cortisol levels between humans and animals, and human personality traits significantly affected the dog's level of stress. Findings suggest that dogs often mirror the stress levels of their owners.... Read More...