My major research interests and activities over the next several years will focus on the development and evaluation of the objective measurement of physical activity in free-living populations using a variety of sensing devices and mobile phones for data collection and processing. Sensing devices include wireless accelerometers, altimeters, heart rate, skin temperature/heat flux and breathing rate monitors. This research is funded by NIH and is being conducted in collaboration with scientists at MIT. I will continue to direct the Stanford Heart Network, an internet-based patient and health professional support system, with the major mission being to assist community-based CVD prevention/treatment programs implement more effective heart attack and stroke prevention programs. Also, I will continue to collaborate with colleagues on studies promoting energy balance and successful aging.