Support your answers with examples and research. Your responses should clarify your understanding of the topic. They should be your own—original and free from plagiarism. Follow APA guidelines for writing style, spelling and grammar, and citation of sources.Epidemiology–Epidemiology is the study of how often diseases occur in different people and why they occur. Epidemiology can help us track diseases and find out when an outbreak is occurring or if a disease is decreasing due to a public health interventions.Given the above information, what do you think is the role of the epidemiologist in data collection? What is John Snow’s (1854) influence on the foundation of modern epidemiology? What are the current 10 leading causes of death for all races/ethnicities? What, according to you, are the five most important human diseases associated with stress? Justify your answers with appropriate research and reasoning and comment on the postings of at least two peers as to whether you agree with their view on the diseases associated with stress.Homeostasis—The Importance of Being in BalanceWhen many people think of homeostasis they think of their body being in balance or the flight or flight response. Homeostasis is the maintenance of physiological conditions required to maintain the life of the organism. Cannon (1932) has come up with some theories on homeostasis. What are Cannon’s (1932) theories on homeostasis? What is the World Health Organization’s (WHO’s) definition of engineering methods, also known as engineering controls?There are five key engineering methods developed to reduce or eliminate the spread of infection and disease. How effective do you think these methods have been? Of these methods, which one has been the most effective and which one the least effective? Why? Justify your answers with appropriate research and reasoning Name your document:Cite your sources using the correct APA format on a separate page.