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 average American adult spends eight and a half hours a day in front of a screen, whether itâs on a computer, TV, mobile phone or other gadget. Users who spend the most time in front of a screen are those in the 45-54 age group, who dedicate nine and a half hours to this per day.