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Although we take it for granted, sanitation is a physical measure that has probably done more to increase human life span than any kind of drug or surgery.

"The Real Secret to Staying Healthy for Life (Part 1)" by Deepak Chopra, www.huffingtonpost.com. July 30, 2012.
Although we take it for granted, sanitation is a physical measure that has probably done more to increase human life span than any kind of drug or surgery.