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.
Some foods just look like they should be good for the mind, Katz says. Take cauliflower. Kind of like walnuts, it visually reminds you of the brain. It's a great source of vitamin K, which is said to keep your mind sharp as you age and boost memory, as well as folate.