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The Internet of Things (IoT) has infiltrated nearly every aspect of life. The healthcare industry has become one of the most popular applications for IoT and related technologies like Artificial Intelligence, etc. IoT infrastructures and solutions are used in smart healthcare. By making use of wearable and mobile devices, IoT-based smart healthcare systems have added great value to the healthcare domain. This leads to a significant increase in the use of health data sharing for a more accurateand timely diagnosis. Its mainstream adoption, however, remains a elusive dream. The major drive behind this is ensuring the data and participating entities' security and privacy at all costs. Smart healthcare systemsare at risk to a variety of security flaws and malicious attacks, including data leakage, tampering, forgery, and so on. To address this, green blockchain technology has come to light as a practical way of enhancing data security and privacy for both users as well as data. Through the avalancheof medical information created by e-medical records and other mechanisms based on Information Communication Technology (ICT), a plethora of applications has been discovered usinggreen blockchain in the medicare industry. Conventional healthcare procedures are swiftly adopting present-day technologies in order to make the transition to smart healthcare ecosystems. The main factors driving this transition are theend-user's convenience and user-friendliness. Even with the use of Smart Healthcare Systems (SHS), there are several obstacles in the transparency, security, and safety of data and its consumers. This paper providesa comprehensive overviewof green blockchain's use in the healthcare industry. It also puts forth a green blockchain-based SmartHealthcare Securitystructure to ensure the system's inherent security and integrity. [ABSTRACT FROM AUTHOR]

Human beings do not have enough time to consult a doctor on a regular basis about their health because of their heavy workload and lack of time. It becomes difficult for the patients to visit multiple hospitals multiple times for their examination. With Healthcare 4.0 and fog computing a large quantity of information can be processed which can generate insights about the patient's health. By using fog computing real time monitoring of the patient's health can be achieved. It makes healthcare more effective, dependable, and convenient. Individuals can self-monitor their blood pressure, heart rate, and other vital signs and take preventive measures. The healthcare industry is a latency-sensitive area, as a result, fog computing deployment in this region is critical. Better care, better treatment, and higher patient satisfaction can result from proper analytics and analysis which can be done closer to end devices using Fog. This bibliometric research focusses on the current scenario, application of FC in Healthcare in India and its relevance in healthcare 4.0. This research aims to analyses how healthcare in India has integrated fog computing to enhance the quality of their services, the developments in recent times and what are the gaps in the research. A literature review will be conducted using the academic documents published in peer reviewed scientific journals, white papers, articles and secondary research will be used. [ABSTRACT FROM AUTHOR]