There are only two areas of concern that seem to reliably trigger our upstream instincts: our kids and our teeth. When it comes to our children, we’re capable of thinking years down the road: Are they getting too much screen time? Are they eating healthy diets? Will they be able to get into a good college? Somewhat more puzzling is the regard we show for our teeth, the most coddled organ in our body. Even as our skin is shorted sunscreen and our hearts denied a brisk jog and our immune systems refused an annual flu shot, we make it a priority on every single day of our lives, even the busiest
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