Did you remember to wash your hands?

Nishi Kumar is working as an intern at the U.S. Fund for UNICEF throughout the Fall.

"Did you remember to wash your hands?" This is a question most of us heard thousands of times throughout our childhoods. Hand washing is a routine we pick up at an early age, drilled into us by constant reminders from relatives, teachers, and catchy TV jingles. By adolescence, it becomes an ingrained habit that we eventually pass down onto our own children. Most of us have never stopped to consider why this simple act