Common sense influences countless events in our daily lives. But what exactly is it? Is common sense a science? Is it rooted in intelligence, instinct, or experience?

One wise definition states: “Common sense is the power which aids us in distinguishing what we should consider as our duty, as a right, or as something conforming to equality established by the law of intelligence.” Another describes it simply as “the intelligence of instinct.” Common Sense: The Wisest Physician The Japanese thinker Yoritomo once said: “Common sense is the wisest physician whom it is possible to consult. If we followed its advice, we would avoid the thousand and one little annoyances of illness caused by imprudence.” In healthcare, common sense often succeeds where complex theories fail. Much of healthy living is not about trends or difficult philosophies—it is about applying simple, time-tested truths.…