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.
Healthy Foods to Protect Eye Health. Eating right can keep our eyes healthy and lower the risk of eye disease. There are some foods that are particularly important for maintaining eye health. These are the foods that are rich in lutein, zeaxanthin, vitamin C, vitamin E, vitamin A, zinc, omega-3 fatty acids and fiber. Kale: Like other leafy dark green vegetables, Kale is rich in lutein and zeaxanthin. These nutrients are concentrated in the retina and lens, playing an important role lowering risk of AMD and cataracts, and providing protection against retinal damage.