News tagged with breathing

Breath test for detecting head and neck cancer

A portable device can detect the presence of certain types of cancer in people's breath. Tested on patients, the new device was developed in part by EPFL researchers as part of an international collaboration.

Apr 10, 2015
popularity 18 comments 0

Should I use mouthwash?

A mouthwash or therapeutic rinse can complement brushing and flossing, but it's not a license to abandon proven oral health care. Here are a few things to consider before incorporating one into your daily ...

Mar 23, 2015
popularity 4 comments 2

Detecting cancer through breath analysis

Although it is possible to detect diseases by studying a person's breath, this is by no means an easy task. However, scientists in the New Technology Field for Chemical and Optical Systems at Siemens Corporate ...

Feb 04, 2015
popularity 4 comments 0

Rihanna eases kids' pain after surgery

Pediatric patients who listened to 30 minutes of songs by Rihanna, Taylor Swift and other singers of their choosing—or audio books—had a significant reduction in pain after major surgery, according to a new Northwestern ...

Jan 08, 2015
popularity 11 comments 0

Breathing

Breathing is the process that moves air in and out of the lungs. Aerobic organisms require oxygen to release energy via respiration, in the form of the metabolism of energy-rich molecules such as glucose. Breathing is only one process that delivers oxygen to where it is needed in the body and removes carbon dioxide. Another important process involves the movement of blood by the circulatory system. Gas exchange occurs in the pulmonary alveoli by passive diffusion of gases between the alveolar gas and the blood in lung capillaries. Once these dissolved gases are in the blood, the heart powers their flow around the body (via the circulatory system). The medical term for normal relaxed breathing is eupnea.

In addition to removing carbon dioxide, breathing results in loss of water from the body. Exhaled air has a relative humidity of 100% because of water diffusing across the moist surface of breathing passages and alveoli.

This text uses material from Wikipedia licensed under CC BY-SA