I would say the answer would be either yoga or cardio
answer: the brain continues to exhibit in both size and weight
Did you mean mechanical ? If you do mean mechanical then here's the answer to your question:
Mechanical digestion is when the food is being broken down physically into smaller pieces from the mouth and chemical digestion is when the food is being broken down into substance particals starting from the saliva and proceeding through the small intestines.
To apply the FITT principles to eating habits we use frequency of eating, intensity of calories, how many times they eat a day and the type of food.
FITT stands for: Frequency, Intensity, Time, Type