Farm wife Karen Johnson reaches for a bottle of vitamins in the kitchen of her home in rural Shelby County, Iowa. The Johnson's take a daily dosage of vitamin E, vitamin C, Calcium, Gluconosime and a low dosage aspirin to help stay healthy.
Johnson and her husband Bill have been farming for over 55 years, and have no immediate plans for retirement.
"We plan on doing this for another 15 years," she said. Photo by David Peterson