A dangerously low oxygen level—usually below 92%—can cause shortness of breath, confusion, chest pain, or fainting. It’s often triggered by lung or heart conditions like COPD, asthma, or heart ...

Sickle cell anemia causes sickle-shaped cells to block blood flow to the lungs, leading to acute chest syndrome. Common treatment methods involve oxygen supplementation and pain management. Sickle ...

Low oxygen levels in the blood can alter the genetic makeup of key immune cells, weakening the body's ability to fight infection, new research shows. The team discovered that low oxygen appears to ...

Cyanotic heart disease refers to a group of heart problems that occur at birth. The condition can cause abnormally low oxygen levels in the blood and lead to a bluish skin color. Congenital heart ...