The human body need energy to do all the daily activities such as walking, running, breathing, speech ..... and this energy we gain from food and organic materials such as proteins, fats sugars who analysis  to the basic units  amino acids, fatty acids, mono sugar

Research question: What is the correlation between the obesity and eating habits at evening? (the independent variable eating , and the dependent variable  obesity ))

Research Hypothesis:  human who  eat in the night  become more Fat

A biological explanation:

When we eat in the night and slept directly the amount of eating accumulate in the body and not oxidized because the metabolic processes in the night will be  low, leading to obesity 

What is the correlation between the obesity and eating habits at evening?

To solve this question we ask every person to answer these following questions:

Do you usually eat after 7:00 pm? Yes/no

Your age?

Your weight?

Your tall?