“The Science of Optimism” is an ongoing blog series focused on the bright side of dating in 2013. The series will feature posts by Dr. Helen Fisher, biological anthropologist and scientific advisor for Chemistry.com.

By Dr. Helen Fisher

Prayers, betting parlors, doctor’s appointments, monuments, diets, holidays, college degrees, lottery tickets, Valentine’s Day flowers, wedding rings: what do these things have in common? Each offers hope. The Statue of Liberty is a beacon of hope. Las Vegas sells hope. Immigrants risk their lives and leave their homelands because they hope. At Christmas, Passover and Ramadan, we hope… (Read the rest on LiveScience.com here)

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