Depending on the area seen in an individual picture, brown, yellow and green continents can be seen or parts of Earth can be covered by white clouds. Earth is by far the most dynamic planet when seen from space.
Oxygen therapy is a medical treatment. It must be prescribed by a doctor. For people with COPD, oxygen therapy can be a helpful part of their treatment plan. The prescription your doctor writes will include: If you need oxygen for rest, exercise and/or sleep, and how much in liters per minute (lpm) for each activity.
Many patients with moderate to severe COPD get short of breath doing light activities and then wonder if they need oxygen. Although oxygen is necessary for some, many patients donât need it, even when they are symptomatic. When these patients are told that oxygen wonât help them, they donât always understand why. Air is made of various gases, 21 percent of which is oxygen.