Diseases, Conditions, Syndromes

Strokes on a plane? On-board facial paralysis wasn't what it seemed

Alan J. Hunter from Oregon Health & Science University was a passenger on a recent airline flight when he responded to a flight attendant's request for a "doctor on board." The flight attendant suspected that a young male ...

Cardiology

Higher risk of heart failure in cold weather, study suggests

An increase in hospitalization and death in elderly patients with heart failure could be associated with changes in temperature and atmospheric pressure, according to a new study in Environment International. The authors ...

Diseases, Conditions, Syndromes

Updated app will boost Meniere's research

Research into Ménière's Disease is getting a big boost this week, with the release of a newly updated tool to record and analyse symptoms.

Medications

Hyperbaric oxygen chambers aren't cure-alls, FDA warns

(HealthDay)—Despite claims on some websites, there is no evidence that hyperbaric oxygen therapy cures or is an effective treatment for diseases such as cancer, autism, diabetes or other diseases, the U.S. Food and Drug ...

Atmospheric pressure

Atmospheric pressure is sometimes defined as the force per unit area exerted against a surface by the weight of air above that surface at any given point in the Earth's atmosphere. In most circumstances atmospheric pressure is closely approximated by the hydrostatic pressure caused by the weight of air above the measurement point. Low pressure areas have less atmospheric mass above their location, whereas high pressure areas have more atmospheric mass above their location. Similarly, as elevation increases there is less overlying atmospheric mass, so that pressure decreases with increasing elevation. A column of air one square inch in cross-section, measured from sea level to the top of the atmosphere, would weigh approximately 65.5 newtons (14.7 lbf). The weight of a 1 m2 (11 sq ft) column of air would be about 101 kN (10.3 tf).

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