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Due to increase in chronic disease, aging, and medical costs, we are approaching a world where basic healthcare would become out of reach to most people. Fortunately modern technologies like Ambient Intelligence (AmI) and Internet of things (IoT) offer unparalleled benefits, which could improve the quality and efficiency of treatments and accordingly improve the health of the patients. The idea is to bring down the hospital management, drugs and healthcare costs and also make it more accessible. Real-time monitoring using sensors can save lives in event of a medical emergency like heart failure, diabetes, etc. and for terminally ill patients, who needs continuous monitoring. IoT enables interoperability, machine-to-machine communication, information exchange, and data movement that makes healthcare service delivery effective. Mobile healthcare helps monitor/check the patients and identify anomalies instantly besides reducing hospital management costs. This paper presents a survey about infrastructure, technologies and methodologies used in IoT-AmI for mobile health monitoring. We focused on the methodologies utilized to detect and monitor health status of patients and how Ambient Intelligence can greatly effect our lives.