The study of disease transmission may be a key perspective of public health improves. The region points to offer the avoidance of disorders and to advance the health of individuals. The basic location of capable the study of disease transmission includes epidemiologic assessment of open wellbeing records, wellbeing issues of state and drift investigations, open wellbeing exploration and wellbeing computer program affect valuation. Open wellbeing is serene of numerous fields of sciences and gifts. The thoughtful of the field is to guarantee more wellbeing comes about for communities globally, in any case the center is insistently on preventative measures, input of recuperating. The Middle for Illness Control and Anticipation (CDC) has endeavored to characterize the circle, clarifying that all wellness structures are exceptionally complex and include a mess of organizations, counting clinics, bosses, clinics, churches, resources, and more noteworthy.

Nutritional epidemiology is an area of epidemiology that involves research mainly to examine the role of nutrition in the etiology of disease, monitor the nutritional status of populations and to develop & evaluate interventions to achieve and maintain healthful eating patterns among populations. Evidence of a link between prevalent chronic disease and the has led to new investigations in nutritional epidemiology. Nutritional Epidemiology is the study of disease transmission which deals with the observing at the part of nourishment in etiology of the condition, watching the nutritious status within the population and to preserve solid designs of great well-being among the society. Nutritional epidemiology is a relatively new field or younger disciplines in epidemiology and medical research. Physical Activity and Diet are difficult to measure accurately, which may partly explain why nutrition has received less attention than other risk factors for disease in epidemiology.

Mental health includes emotional, psychological, and social well-being of the population. It relates with how we think, feel, and act and how we handle stress, relate to others, and make choices. Mental health is necessary at every stage of life, from childhood and adolescence through adulthood. Due to mental health problems, thinking, mood, and behaviour could be affected. Many factors contribute to mental health problems, including: Biological factors (genes or brain chemistry), Life experiences (trauma/abuse) and Family history of mental health problems. Mental health issues are common in modern lifestyle, but many technologies have developed to treat such cases. People with mental health problems can get better and many recovers completely.

Nutrition is the supply of nutrients required for the survival of organisms. As per the science, nutrition is the science or practice of consuming and utilizing foods by the population. It is the application of nutrition principles to improve and maintain optimal community health and targets the community through enhancements in health policies, health systems, health technology and environmental health. A nutrient is a key source of nourishment. It may be the component of food, for instance, protein, carbohydrate, fat, vitamin, mineral, fibre and water. Community Nutrition incorporates individuals and interpersonal-level interventions that make changes in learning, states of mind, conduct and well-being results among people, families or small, focused on gatherings inside a community.

Public health nursing is the practical approach of promoting and protecting the health of populations using knowledge from nursing, social, and public health sciences It also refers to the strength of Open well-being. Open well-being medical caretakers are a community of medical caretakers who are included in joining a community and who knows well almost clinical strategies and treatment of well-being. Open well-being nursing is one of the ignored fields of the health sector. The nurses must be prepared to respond directly to public health crises; from outbreaks of disease to natural disasters. It is very important to provide the knowledge on emerging public health issues, to help nurses to make the most informed treatment decisions.

Healthcare management or healthcare administration, is the administration, management or supervision of healthcare systems, hospitals, entire hospital networks or other medical facilities. Healthcare Management is the profession that provides leadership as well as direction to organizations which deliver personal health services, and to divisions, departments, units, or services within those organizations. Duties of these professionals include ensuring that individual departments run smoothly, qualified employees are hired, information is communicated efficiently throughout the organization, specific outcomes are reached, and resources are used efficiently, among many other responsibilities.

Occupational health is the identification and control of the risks arising from chemical, physical, and other workplace hazards in order to establish and maintain a safe and healthy working environment. It can be done by Controlling risks, promoting healthy eating practices, providing humanitarian aid, improving Health Systems and preventing the departures from health can lead to the successful occupational health. Safety practice for the better occupational health requires the collaboration and participation of both employers and workers in health and safety programmes and involves the consideration of issues relating to occupational medicine, education, engineering safety, toxicology industrial hygiene, ergonomics, psychology, etc. The main aim of occupational safety and health (OSH) is to develop the safety and healthy work. It takes care of co-workers, family members, customers, and many other related groups of people who directly or indirectly gets affected by the workspace environment.

The general practice is one of the medical practices, where the healthcare professional treats the incessant and intense sickness and gives preventive care and well-being instruction to the patients. And essential care is the well-being care given to the gather of individuals or community in some time recently drawing closer to the restorative specialist or the clinic. Essential care and general practice are the earlier measures taken some time recently begin the treatment.

Obesity is a condition where the individual builds up additional body fat which may threaten their well-being. Obesity is major well-being risk within the rising population. It is measured in terms of body mass list. There are numerous well-being dangers related to obesity. Obesity and Over-weight are caused by many factors. Body weight of an individual is determined by a combination of genetic, metabolic, behavioural, environmental, cultural, and socio-economic influences. Behavioural and environmental factors are large contributors to obesity and provide the greatest opportunity for actions and interventions designed for prevention and treatment.

Community health is a field of clinical and pharmaceutical and which deals with the consideration of support, assurance, and advance of health status for the society. It deals with the study and advance of health conditions and characteristic nature of organic communities.

Scientific Epidemiology is the branch of clinical science which decides the aim, objective and impacts of clinical choices. It is conveying quality changes within the symptomatic strategies, medicines and more prominent extend of reactions to clinical circumstances. In other words, Scientific Epidemiology is a practical science which concentrates on results of health and health extremes.

It is an interdisciplinary field which emphasis on health and safety and welfare of the population at the workspace. This field is initially an abbreviation of occupational safety and health program. The main aim of occupational safety and health (OSH) is to develop the safety and healthy work. It takes care of co-workers, family members, customers, and many other related groups of people who directly or indirectly gets affected by the workspace environment.

Personalized Medication is the field of medication which may be a therapeutic handle to classify patients into different groups based on the medicine, therapeutic conditions, mediations and substances being custom-made to the individual patient depending on the patient reactions or hazard figure of the disease.

Healthcare-associated diseases are also called as Healthcare-associated infections (HCAI). These are also referred to as “hospital infection”, an infection occurring in the patient during the progression of health care facility or in hospital.

Ecological or Environmental epidemiology is the branch of epidemiology concerned with the study of the factors that affect the incidence, prevalence and geographic range of human health through Environmental factors. Environmental epidemiology deals with the discovery of the environmental representation that affectionate to or protect against the injuries, sickness, medical conditions, disabilities, and deaths.

Preventive medicine is a unique medicinal specialty which has been recognized by the American Board of Medical Specialties (ABMS) which focuses on health care of individual people, communities. The focus is to provide secure medicines, protect, promote and maintain health and well-being and to reduce diseases and deaths.

Beneficial nourishment cannot be characterized by healthy quality individually. It is the result of a nourishment framework that preserves and re-establishes normal assets, propels social equity and creature welfare, builds community riches, and fulfils the nourishment and food. The healthcare division can tackle its mastery and obtain control to put a natural nourishment approach into action and to create nourishment a crucial portion of prevention-based health care.

Therapeutic morals conspire toward respectable standards which include values in the practice of medication and clinical field in scientific research. Therapeutic morals guide the rules and approaches to be taken after by all the work individuals in any case of race, religion, sexual orientation beneath principled care and ensured quality. On the other side, health approach is the choices, activities, plans attempted to achieve the healthcare objectives within the society which incorporates conveyance, get to health care and quality and value of well-being.

Oncology is a current extensive research branch of medicine which deals with the prevention, diagnosis & treatment of cancer. There are many risk factors for cancer, some of them include alcohol consumption, tobacco, smoking, age. The world suffers a serious issue related to cancer. Various techniques and drugs are being introduced in the market for cancer treatment.

Prolonged starvation results in Marasmus. Marasmus is the most frequent form of Protein Energy Famine in conditions of severe food shortage. The presence of certain substances in cereals, tea and coffee seriously inhibits iron absorption. Iron supplementation is needed to reduce the prevalence of iron deficiency anemia.

Diabetes is a medical disease condition that impairs the body's ability to process blood glucose. The result of diabetes on emerging countries will be specifically severe as the disease is chronic, costly to treat, and tends to affect economically active people. The economic cost for dealing with the consequences of diabetes is not only a warning to health systems but is a far broader social and economic problem and thus a threat to future long-term sustainable development.

Nutraceuticals have positive physiological impacts on the human body and which are not continually recognized supplements. They are claimed to have numerous helpful benefits. The therapeutic plants represent one of the critical fields of conventional medication all over the world and thus set up constituents of nutraceuticals. The association between the nutritional environment and cellular/genetic processes is termed as ‘Nutrigenomics’. It gives the molecular level information of phytochemicals benefitting human health by altering the expression or constitution of genes.