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Feb 23, 2018

Topic - Caffeine and Growing Brains.  Research done with mice tells us the shocking story about the effects of caffeine on developing brains. 

Mice mommies drank coffee while pregnant and nursing and their babies had serious memory deficits. 

The part of the brain that stores memories, the hippocampus, actually fired...


Feb 22, 2018

Topic - The Boundaries of Personal Space.  Judging personal space is a social problem for those with Attention-Deficit/Hyperactivity Disorder and anxiety. 

There’s a definite no-fly zone around most people’s faces. 

The margin of discomfort is about twenty-to-forty centimeters from the face and continues right up to...


Feb 21, 2018

Topic - Sleep and Gene Activity.  Until now, science hasn’t been able to explain why sleep-deprived people have so many health problems. 

Getting only 6 hours of sleep each night for a week changes the activity of a whopping 711 genes. 

Considering we have about 20,000, this may not seem like much, but it took only 7...


Feb 21, 2018

Topic - Babies Perk Up to Ancient Threats.  Deep in our skulls, we have the remains of our ancient, primitive brain. 

This brain is wired to make infants pay special attention to those sounds that signal a threat to safety and survival from the caveman days. 

The snap of a fire, the hiss of a snake, a clap of thunder...


Feb 21, 2018

Topic - Identical Twins Differ in the Womb.  Identical twins are not copies of each other. 

When they’re born, each twin has different chemical markers on their DNA that change the activity of some genes.  

Why is this important?  The changes these markers cause are responsible for slight differences in appearance and...