Over time, there has been a steady influx of weight among individuals. Historically, individuals lived healthy lives, which was evident in the way they ate and daily work brought on by a different era of time and life. In today's society, nutrition and physical activity are not as important as they have historically been for so many individuals. The most interesting research question is: do physical activity and nutrition play a key role in maintaining a healthy lifestyle? The independent variable is that the amount of healthy nutrients and physical activity reduce the likelihood of obesity and weight-related health conditions and increase overall healthy lifestyles. The dependent variable, always present, is that nutrition and physical activity are determining factors for an overall healthy lifestyle. NUTRITION AND PHYSICAL ACTIVITY 3Literature review1. Sampling and delivery The sampling methods used by the research team for the chosen topic related to nutrition and physical activity were collected through surveys conducted and processed using the suggestion database (Health Information National Trends Survey). Gathering information based solely on the responses obtained, allowing researchers to not only project, but also make educated guesses based on the information received and proven true.2. Variables The hypothesized answer is: (1) The null hypothesis states that individuals who do not eat enough fruits and vegetables each day to maintain good health will also lack physical activity as part of their daily routine. (2) The alternative hypothesis describes the one based on higher internal motivations...... middle of paper ......ges, RC., L. M. Klesges, C. K. Haddock, & L. H. Eck (1992). A longitudinal analysis of the impact of dietary intake and physical activity on weight change in adults. The American Society for Clinical Nutrition. www.nutrition.org Li, Kaigang., Ronald Iannotti, Denise Haynie, Jessamyn Perius, and Bruce Simons-Morton (2014). Motivation and planning as mediators of the relationship between social support and physical activity among US adolescents: A nationally represented study. International Journal of Behavioral Nutrition and Physical Activity. Surgeon General's Report (1998). Physical activity and health.www.books.google.comRobroek, Suzan., Frank Lenthe, Pepign Empelen, and Alex Burdorf (2009). Determinants of participation in workplace health promotion programs: a systematic review. International Journal of Behavior Nutrition and Physical Activity.