From Newark to Tokyo, large-scale indoor farms are being built in and around cities worldwide. Proponents argue they provide fresher crops to local consumers, while cutting transportation costs, carbon emissions and water use. But skeptics say they are not cost effective and consume too much energy. The pros and cons of indoor urban agriculture.
Our body's touch circuits involve complex connections between the brain, nerves and skin. A leading neuroscientist explains how the sensation of touch works — and its powerful link to pain and emotion.
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