Which is an internal factor that may influence one descision to have sex

Witch system has the main function of the body defense

Don recorded his food intake for a week and then used a computerized dietary analysis program to analyze his diet. according to the results of the analysis, his average daily saturated fat intake was 5% of total calories and his average daily unsaturated fat intake was 12% of total calories. based on this information, his total fat intake is the acceptable macronutrient distribution range.

What is an important step to prove something is valid or not? determining the reliability observing research testing