Transferring microbes from the mom to her infant born via C-section comes with infection risk
Too short or too long may up discomfort, study suggests
Babies born at 2.2 pounds or less normally face higher risk of adult psychological issues
That could take a toll on child's development, researchers say
But study authors say findings need to be interpreted with caution
Preterm deliveries and births to older moms are up, report finds
Study finds the longer a woman does it, the lower her risk drops
Criticism of parenting skills usually comes from family members, on topics from discipline to diet
But researchers say absolute risk is low