This week on Healthy Living – A close look at one of the worst droughts in East Africa in recent history. Tanzanian scientist Dr. Askwar Hilonga uses nanotechnology to provide clean and safe water. And U.S.-based charity group “Water Is Life” fights the water shortage in Kenya, one well at a time. Plus, we'll see how many showers experts say you should take a week. These stories and more in this week's program! S2, E157