What should women do in order to reduce the risk of having Spina Bifida?

Why would a baby be born with Spina Bifida? What really is Spina Bifida? Are there different types of Spina Bifida? Is there a cure for this birth defect? What should women do in order to reduce the risk of having Spina Bifida? Do women who give birth to babies with Spinal Bifida are more at risk of conceiving more babies with Spina Bifida? Is Spina Bifida preventable? Why is folic acid a supossed vitamin that can reduce the risk of Spina Bifida? Where is the connection? Can Spina Bifida be caused by specific environmental agents, such as pharmaceutical drugs or other chemicals? What are the chances of babies with Spina Bifida of surviving? How can people with Spina Bifida be treated? Is Spina Bifida a problem that causes other problems in the skin, allergies, gastrointestinal problems, sleeping, orthopedics, and so on? Do people with Spina Bifida need to be treated for their entire lives? How long can they live?Investigate about Spina Bifida and write an essay about it. The questions provided above are to motivate you to investigate about this topic; you do not need to answer them one by one.