When you eat fast, it's much easier to eat a lot more food than your body really needs. Over time, excess calorie intake can lead to weight gain. One study in children found that 60% of those who ate rapidly also overate. The fast eaters were also 3 times more likely to be overweight.
Mental health is the state of ones mind in their thoughts and actions. Ones emotional health is how one feels about different things and how he handles these emotions.