Diseases, Conditions, Syndromes

The emerging viruses of the 21st century

The recent explosion of monkeypox cases in countries where the infection had not previously spread, coupled with the COVID-19 pandemic, has underscored the rising threat of emerging viruses in the 21st century.

Psychology & Psychiatry

Environmental factors behind depression in Sri Lanka

Depression is influenced more by environmental factors than genetic ones, said a study conducted in Sri Lanka—a country devastated by a long-running civil war (1983–2009) and the 2004 Indian Ocean Tsunami, resulting in ...

Health

Injuries from ocean waves more common than thought

(HealthDay)—A study out of Delaware suggests that injuries to beachgoers caused by ocean waves are more common and severe than previously suspected, and people need to be aware of the ocean's power—even in shallow water.

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Ocean

An ocean (from Greek Ωκεανός, Okeanos (Oceanus)) is a major body of saline water, and a principal component of the hydrosphere. Approximately 71% of the Earth's surface (an area of some 361 million square kilometers) is covered by ocean, a continuous body of water that is customarily divided into several principal oceans and smaller seas. More than half of this area is over 3,000 meters (9,800 ft) deep. Average oceanic salinity is around 35 parts per thousand (ppt) (3.5%), and nearly all seawater has a salinity in the range of 30 to 38 ppt.

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