It is an international baccalaureate (IB) Diploma (highschool) Mathematics Standard Level Internal Assessment. Please follow the criteria and guideline that IB requires. In this essay, I must find the impact of caffeine on human body’s heart-rate over time, by analyzing the data mathematically. I have collected data of heart-rate of 7 subjects over 8 hours (please see the document) through primary research. I attached the specific criteria for the assessment, as well as the personal feedback from the supervisor. The most important thing to keep in mind is to meet the CRITERIA and use decent level of mathematical knowledge from IB Diploma Mathematics Standard Level Syllabus.