Oxygen is critical to life. When levels of oxygen change, it can have immediate and lasting impacts on a person's health.

A new nationwide study led by the University of Maryland is seeking volunteers to help document and analyze the full range of human flatulence.

Introduction Maintaining normal fluid status is critical to health and well-being. Older people are vulnerable to abnormal fluid status and associated complications, morbidity and mortality. Care home ...

Rising carbon dioxide levels are being detected within the human body, with new research warning a key blood marker for the gas could near its healthy limit within decades if current trends continue.

A dangerously high blood pressure reading for women is 180/120 mmHg or higher. Learn more about the health risks and when to seek emergency care.