By Madeline Kennedy (Reuters Health) – Mobile apps and web-based programs do help people reach health goals like exercising more, losing weight and quitting smoking, but studies need to follow-up longer to see how sustainable these interventions are, according to a recent review of existing research. Lifestyle choices like poor diet and smoking are a major cause of death and disease worldwide, the researchers write in the Journal of the American Heart Association, and digital tools may be a low-cost and more accessible option for people looking to improve their health. “Our results suggest internet-based and mobile-based interventions can be effective tools for behavioral modification,” said lead author Dr. Ashkan Afshin, the Assistant Professor of Global Health at the University of Washington in Seattle.