WHY
======================= *Why do people get sick with changing seasons * 
According to medical research, most grown-ups suffer from cold 2-4 times and children 5-7 times every year. This roughly coincides with the number of times season changes within Read more
WHY Why we dream
…? The scientific study of dreams is called oneirology. Dreams mainly occur in the rapid-eye movement (REM) stage of sleep—when brain activity is high and resembles that of being awake. REM sleep is revealed by continuous movements Read more
WHY ======================= Why frogs can’t walk much distance.. 
Frogs and toads jump, swim, climb, and even glide. The frogs’ front legs are a bit shorter than their hind legs, but they compensate for this by stretching their front legs Read more
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