How embryos get nutrients from mom

Exactly how human embryos could get all of the nutrition they needed during the first 11 weeks of pregnancy has been a mystery - until now.

Prenatal stress might trigger schizophrenia, PTSD, autism

When mothers are exposed to trauma, illness, alcohol or other drug abuse, these stressors may activate a single molecular trigger in brain cells that can go awry, and activate conditions such as schizophrenia, post-traumatic stress disorder and some forms of autism.