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.
What's new: Replacing oxygen with a mix of helium and oxygen. Standard oxygen therapy benefits patients with advanced COPD by boosting the ability of the lungs to supply oxygen to the blood. Now new research suggests that a better version of this treatment will soon be available.