Your body runs on blood like a car runs on fuel – without enough of it, everything starts breaking down. When blood levels drop too low, your organs begin struggling to get the oxygen and nutrients ...

Medically reviewed by Lauren Schlanger, MD Key Takeaways Low blood pressure may cause no symptoms, but the presence of symptoms necessitates medical attention.Possible symptoms can include dizziness, ...

There were no differences in quality of life, symptoms, hospital admissions or mortality between a group of patients with pulmonary disease and low oxygen levels in the blood that received oxygen ...

LONDON (Reuters) - A team of British doctors conducting experiments in the "Death Zone" of Mount Everest has recorded the lowest levels of blood oxygen in humans, far below those of critically ill ...

Ozone (O3) exposure may reduce the availability of oxygen in the body, resulting in arterial stiffening due to the body's natural response to create more red blood cells and hemoglobin, according to a ...

Researchers have found evidence that low oxygen levels in tumors could actually enhance some of the body's immune responses against cancer, in contrast with the general paradigm that hypoxia ...

Vitamin B12 deficiency can be caused by poor diet or malabsorption, leading to fatigue, muscle weakness, and memory problems.