Over time, there has been a steady influx of weight among individuals. Historically, individuals led healthy lives, which was reflected in the way they ate and the daily work brought about by a different era and lifestyle. In today's society, nutrition and physical activity no longer have the same importance as they historically did for many individuals. The research question of interest is: Do physical activity and nutrition play a key role in maintaining a healthy lifestyle? The independent variable is the amount of healthy nutrients and physical activity that decrease the risk of obesity and weight-related health problems 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. Sample and Delivery The sampling methods used by the research team for the chosen topic of nutrition and physical activity were collected through surveys conducted and processed using the database of indices (Health Information National Trends Survey). By collecting 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 to be true.2. VariablesThe hypothetical answer is: (1) According to the null hypothesis, individuals who consume enough fruits and vegetables daily to maintain good health will also lack physical activity as part of their daily routine. (2) The alternative hypothesis describes that based on higher internal motivations...... middle of article ......ges, RC., LM Klesges, CK Haddock and LH Eck (1992). A longitudinal analysis of the impact of dietary intake and physical activity on weight change in adults. American Society of 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. Report of the Surgeon General (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.