Why are Hobbits such good travelers? Because they’ve never walked a mile in ANYONE else’s shoes! This is Sandra Tsing Loh with the Loh Down on Science. Humans evolved walking barefoot, not in fancy sneakers. Calluses developed to naturally protect our feet from walking hazards, like sharp sticks and rocks.
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The Nasal Cycle
Did you know your nose has its own cycle? This is Sandra Tsing Loh with the Loh Down on Science. A whopping eighty percent of us have a nasal cycle. Meaning that congestion alternates from one nostril to the other throughout the day. We just don’t usually notice because our
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