Hyperinflated lungs can be caused by obstructions in the passages that deliver air to your lung tissue. Air gets trapped within the lung and causes it to overinflate. Hyperinflation can also occur when the air sacs in your lungs become less elastic, which interferes with the expulsion of air from your lungs. One of the most common causes of hyperinflated lungs is chronic obstructive pulmonary disease (COPD) â a disorder that includes emphysema. Certain lung problems, such as asthma and cystic fibrosis, also can cause hyperinflation. In some cases, lungs may appear hyperinflated on X-rays for reasons unrelated to lung function. If you aren't experiencing shortness of breath, there's probably nothing to worry about. However, if it isn't clear what is causing the hyperinflation, your doctor may recommend additional testing.
Image caption Children should not have more than two hours' screen time a day, say study authors. Children who spend longer than two hours a day in front of a computer or TV are more likely to suffer psychological difficulties than other youngsters, a UK study suggests.mage caption Children should not have more than two hours' screen time a day, say study authors. Children who spend longer than two hours a day in front of a computer or TV are more likely to suffer psychological difficulties than other youngsters, a UK study suggests.
The AAP recommends no more than 2 hours of TV per day, yet children are spending over 4 hours per day, on average. That means for every child who only watches 2 hours per day, there's another child who watches, on average, 5 to 6 hours per day. Which according to you, is no big deal as long as the child seems OK.