Step 1: Define "lifestyle factors".
Step 1: Lifestyle factors are habits, choices, and behaviors within an individual's control that impact their health. Examples include diet, exercise, sleep, and stress management.
Step 2: Analyze the given options.
Step 2:
Adequate Nutrition: This is a choice related to diet and is a key lifestyle factor.
Enough Sleep: The amount and quality of sleep is a behavioral habit and a lifestyle factor.
Sufficient Physical Activity: Choosing to exercise is a classic lifestyle factor.
Genetic Composition: This refers to an individual's DNA, which is inherited and not a matter of choice or behavior. It is a determinant of health, but it is a non-modifiable biological factor, not a lifestyle factor.
Step 3: Identify the option that is not a lifestyle factor.
Step 3: Genetic composition is determined at conception and cannot be changed through personal habits. Therefore, it is not a lifestyle factor.