We are so constructed that brain and stomach--each of which demands an extra supply of blood when performing its work--can not function with maximum efficiency simultaneously. Why Light Lunches When your stomach is busy digesting a big meal your brain takes a vacation. This little fact is responsible for millions of light luncheons daily. The strenuous manual worker can empty a full dinner pail and profit by it but the brain worker long ago discovered that a heavy midday meal gave him a heavy brain for hours afterwards. Clear Thinking and a Clear Stomach Clear thinking demands a clear stomach because an empty stomach means
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