How to avoid becoming a full-blown mole person.
beneath the city’s clogged urban arteries. Other dense urban spaces, like London and Mexico City, are also seeking to grow down, now that the limits of sprawl and high-rises become clear.
Still, even “cavemen” ventured outdoors. Living entirely underground would be unprecedented, to the point of being nearly unfathomable. But experts say with good design and a lot of psychological support, humans could make convincing—and surprisingly healthy—mole people.The biggest difference between livingEarth is sunlight. UVA and UVB rays are essential for growing plants for food and stimulating the production of vitamin B in the human body.
Instead of sprawling, sun-drenched fields, underground farms will be more like metal boxes bathed in high-intensity lights and fed by nutrient-rich recycled water. Such systems already exist:, an indoor farming company, grows vertical rows of leafy greens in compact shipping containers packed tight with red and blue LED bulbs. Using a method called hydroponics, farmers can circulate water infused with mineral nutrients through the network of life-sustaining shelves.
Securing a food supply isn’t enough, however. Humans also need vitamin D to maintain bone health. The best-known source of vitamin D may be sunlight exposure , there are plenty of other ways to get your hands on the good stuff. In 2012,, thanks in part to vitamin D-rich foods. So long as we can continue to farm animals in our earthen abodes, egg yolks, fish, milk, and cheese will keep us in the clear.
Sunny dispositions might also be at risk. Seasonal Affective Disorder, better known by the apt acronym SADs, is
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