The current model for health care is built around hospitals, doctors, nurses, and other medical personnel. This model has, up to now, well served the needs of developed countries and relatively young, healthy, and less mobile communities, by sharing costly infrastructure and medical personnel. However, if we continue with this model, the health care system will be stressed to the point of collapse for a number of reasons, and alternative solutions need to be developed to reduce health care costs while preserving or enhancing the quality of life of a country's citizens. Some of the reasons are: u • Health care is becoming too expensive to deliver. For example, the U.S. Congress, already overburdened with an annual health care bill of more than $1.5 trillion, fears that the health care system will be unable to deal with the increase of potential patients [1]. • Population demographics are changing. The worldwide population of people over the age of 65 is expected to double from 375 million in 1990 to 761 million by 2025 [1]. This implies that preventive and/or assistive care must remove the expensive components of health care. Hospital visits and face-to-face consultations with medical personnel are required only when absolutely necessary. • Society is increasingly mobile. With the advance of the Internet and mobile technologies, people are becoming extremely mobile, both at work and in their social activities. Health services must follow people on the move, not expect people to come to the service. • Home care is increasingly preferred. Many people prefer living in their own homes during treatment rather than being in a hospital or nursing home, provided there are satisfactory means for assisting them with home health care services.