Peak flow demonstrates how quickly you can blow air out of your lungs. The peak flow meter is marked so you can determine how much air you can blow out. The better your asthma is controlled, the more air you will be able to blow out.
[T]he data show that the main constituents of a healthy brain diet include fruits, vegetables, legumes, nuts, fish, lean meats, and healthy fats such as olive oil, Jacka told Scientific American.
Fruit and vegetables are full of vitamins, minerals and fibre, and help keep your body in good condition. You should aim to eat five 80g portions of fruit and vegetables every day. Read more about good food, healthy eating and getting your 5 a Day.