Yeah, why? Especially as I look around, I've wondered about that... alot.
I now know the answer to my question. I found it while reading a little book. A book that though written over a hundred years ago, was just re-discovered in the last decade and re-published, because it is still relevant, today.
This book gives the cause -- and the prevention.
I began reading it yesterday. I finished it today. And I was left inspired. Inspired to tell others about this little book. To utilize the things I learnt from it, when I get married and become a mother one day.
No, this book isn't just for mothers. Father's need it too. Even if you're doing it 'right', you will still be benefited by this little book. And after you've read it, you'll want to pass it on. It could quite likely, determine the destiny of the children.