One cannot think well, love well, sleep well if one has not dined well, Virginia Woolf has very aptly stated the relationship between food and mental health. We cannot deny that when a person eats favorite food, the sense organs work in sync, and mood is stabilized respectively.
Apart from the food we eat, desserts also play a huge role in stimulating our brain. If you have ever consumed chocolate you will know the smile and happiness that starts the moment you place it in your mouth. The sweetness plays a huge role and the after effect on it the body too.