This post is dedicated to my friends Julie & Aaron who just had beautiful twin daughters!
I’m in a yoga therapy mentorship program, where we’ve been reading the book The Thinking Body by Mabel E. Todd. It is fascinating, if you are into how and why the body moves and have quite a large vocabulary. You see, it was written in 1937, so I need a dictionary both for the anatomy terms and the strange words that are no longer in use today.
While reading, I’m continually shocked at the insight that a woman had into the human body over 70 years ago (not for the fact that it was a woman, but a woman 70 years ago). If only all people in the medical field since 1937 had to read and absorb the concepts of this book, the world might be a different place. But, I digress.
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- Isn’t the human body cool?
The coolest thing I’ve learned from Mabel is about the development of the spine. We are born with a straight and flexible spine. The ultimate goal of our bodies (in infancy) is to be able to walk. But a straight spine is unable to carry the off-center load of the rib cage (thoracic spine) or the top load of the head, so the spine must develop curves to off-set these loads. The first curve that develops is the thoracic. It curves away from the load it is carrying (the ribs), and becomes concave.
This is where the cool part kicks in: In order to develop/stabilize the opposing convex curves in the low back and neck, a baby must develop muscles in those areas. Babies pelvic and lumbar (low back) muscles start to develop even before they are born as they kick and squirm about in the womb. But the crying and kicking during the first months of life are are also absolutely necessary to continue muscle development for the baby to be able to crawl and eventually walk. So while crying is heartbreaking to us, it is what they have to do not just to communicate.
As I read this I thought of two different friends with two very different first baby experiences. One had a baby that cried a lot, but started walking at 10 months old. Another had a very mellow baby that hardly cried, which didn’t start walking until almost 13 months old. My hypothesis is more crying = faster physical development. I think it might be different for 2nd children who get to watch their siblings move. The crying=physical development is so not how the (horrible) “competitive mom society” looks at or compares development, but wouldn’t it be nice if they did. Because, really what is a few months when you are looking at 75+ years of life and movement.
So, dear Julie and Aaron: as the girls are wailing, instead of fretting (not that I’ve ever seen either of you fret), just consider how their diaphragm and other spinal/pelvic muscles are getting stronger, stabilizing their little bodies for all the growing, crawling and eventual walking they have to do!

