A recent study suggests that a poor-quality diet may increase the chances of weakness in older people. Researchers followed 2,154 older adults in the United States for four years. At the beginning of the study, the adults were between the ages of 70 and 81. Researchers placed each person into one of two groups, “robust” or “pre-frail.” Those who did not appear to have any mental problems or issues with physical frailty were considered “robust.” Those who only had one or two symptoms of frailty were called “pre-frail. Two hundred seventy-seven of those who took part in the study became frail. Of the 1,020 who started out in robust condition, 629 either became frail or developed pre-frailty. People in the study had to have at least three of five health issues to be considered frail.