What: A study from Massachusetts General Hospital Fertility Center found that women with higher self-reported stress levels during fertility treatments were more likely to have high blood sugar during pregnancy, a “sign of weaker cardiovascular health.”

Why it matters: What’s unusual about this study is that it found higher stress levels and blood sugar “among women with high socioeconomic status.” Typically, the inverse is true – lower incomes tend to be associated with more difficult pregnancies.

Source: The Endocrine Society