Chiari (or Arnold-Chiari) malformation occurs when part of the brain pushes down into the spinal canal. Some, but not all people have symptoms. Learn more here.
Folate is a B-group vitamin that our bodies need to grow and develop. Find out more, including why folate is especially important for pregnant women.
Birth defects are quite common. Some are minor and cause little, if any, long term problems. Other birth defects can be life threatening or cause significant disability.
Obesity at conception linked to pregnancy complications
Women should lose weight before getting pregnant if they're obese or overweight, experts say, as excess weight at conception is linked to pregnancy complications.
Screening for Down syndrome
Down syndrome is a chromosomal disorder affecting 1 in 1,100 babies. Screening tests for Down syndrome are routinely offered to pregnant women.