As the health industry enters the new millennium, fast changing demographics are compelling health service delivery system to make dramatic changes in their diagnostic delivery infrastructure. A reducing ratio of servicing professionals to the population, an increasing percentage of the elderly group and surging lifestyle related diseases are also driving the need for more real world measurement of key health indicators. These needs will grow further as new remote real-time e-health applications become more feasible and pervasive. Sensor embedded mobile health diagnostic systems with wireless technology compatibilities are the solution to accommodate the growing needs of next the generation highly reliable, efficient, in situ, cheap and more importantly, practical for use in real life activities. How may this be achieved?This book answers the question and discusses the design and implementation of the dream sensors using MEMS technology that may boost the required system realization.