Diseases, Conditions, Syndromes

Insufficient evidence of reduced COVID-19 incidence at high altitudes

Despite recent reports of lower COVID-19 incidence among high-altitude populations, current data is insufficient to conclude that high altitude is protective against the SARS-CoV-2 virus, as reported in the peer-reviewed ...

Health

Seven things you might not know about blood

Blood is fascinating. Many people learn at school that its function is to transport oxygen and nutrients around the body and remove waste products. But blood has many more functions, including defence against pathogens, regulating ...

Diseases, Conditions, Syndromes

Lung injury in COVID-19 is not high altitude pulmonary edema

A group of researchers with experience in treating high altitude pulmonary edema (HAPE) have written to correct the misconception in medical social media forums and elsewhere that the lung injury seen in COVID-19 is not like ...

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 ...

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Altitude

Altitude or height is defined based on the context in which it is used (aviation, geometry, geographical survey, sport, and more). As a general definition, altitude is a distance measurement, usually in the vertical or "up" direction, between a reference datum and a point or object. The reference datum also often varies according to the context. Although the term altitude is commonly used to mean the height above sea level of a location, in geography the term elevation is often preferred for this usage.

Vertical distance measurements in the "down" direction are commonly referred to as depth.

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