Read the post here.

My first short feature for Slate ran last week, covering the importance of tummy time for infants.

The Back To Sleep Campaign was instituted by the American Academy of Pediatrics in 1992 to battle the number of infants dying each year from SIDS. And it was hugely successful, cutting SIDS cases in the US in half since it started.

Infants are no longer spending time on their stomachs at night, and many are not getting enough belly playtime (called “tummy time”) either. New research has correlated tummy time deficits to lags in pre-walking motor skill development, which in turn has been linked in large birth cohort studies to physical and cognitive ability later in life.

Four years after the Back to Sleep campaign launched, its inadvertent effects started trickling into the clinic. Most notably, some infants had disfiguring flat spots on the back soft crowns of their heads. It took a few years for researchers and doctors to realize that the change in sleeping position also affected prewalking motor skills (whether or not a baby had a misshaped head). Then in 2004, a research team led by Bradley Thach at the Washington University School of Medicine studied the difference in head movements between stomach and back sleepers. Thach showed that babies who spent nights on their bellies quickly developed the brain connections and muscle strength to turn their heads from side to side—one of the first motor-skill hurdles. Babies who consistently slept on their backs, on the other hand, were less likely to have sufficient head mobility at 3 to 5 months.

Whether we are talking about tummy time, breastfeeding, or watching Baby Einstein videos, it’s important to understand that child development doesn’t hinge on one thing. Rather, a multitude of genetic and environmental differences factor in to make us who we are. But I think it’s important to get as much information to the public as possible about potential new links researchers uncover.

Photo via Flickr / samgranleese

A New York Times story grabbed my attention today, “Just Manic Enough: Seeking Perfect Entrepreneurs”. Telling the story of 21-year-old Seth Priebatsch – a guy who successfully secured a $750,000 investment from venture capitalists for what some may argue is just a crazy idea – the article showed how this certain young entrepreneur seemed to tread a very fine line between being a workaholic, self-confident entrepreneur, and full-blown clinical manic.

With hypomania, people experience similar mood and behavior swings as those with clinical mania. But although the two conditions share common symptoms like increased vigor, persistently elevated moods, and reduced desire or need for sleep, hypomania does not seem to prevent people from experiencing a fully functioning life. In fact, some have argued the symptoms may be conducive to success. The NYT article highlighted several well-known, professionally-accomplished hypomaniacs, such as George S. Patton and Theodore Roosevelt, both of whom seemed able to keep the condition in check – arguably, just enough – to rise to the top of their respective professional circles.

Read more…

I just finished my first post for Wired Playbook,  which talks about the hormonal changes that occur in the body during competition.  Whether the hormones levels increase or decrease may give some insight into the psychological readiness of a contender.

Armed with cotton swabs coated with pulverized Sweet Tarts candy, researchers took saliva samples minutes before two monkeys engaged in a staged competition for a pile of food. When dominant males won, there was a clear increase in the stress hormone right before the competition. In these cases, the dominant male was ready. He had sized up his opponent and knew, no doubt, that he’d prevail.

Conversely, when the dominant male lost, the hormone level decreased before the food game. Although these apes live in very well-defined social societies – and the dominant male had more than likely battled with this opponent before and won – something had psyched him out.

Sorry, but this post is nothing but shameless self-promotion!

My first short feature article was published in Scientific American today, which discusses the neurobiology of the father-child bond.  Give it a read!

Last May, I took a trip to San Diego for my brother-in-law’s graduation from college, and to meet his 4-month old son, Landon, for the first time. Throughout the weekend, I couldn’t suppress my inner science nerd, and often found myself probing my nephew’s foot reflexes. Pressured from my wife’s disapproving looks and the blank stares I received from her family as I explained why his toes curled this way or that, I dropped the shop-talk in favor of baby-talk.

Click here to read the rest.