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Hace 2 días · Parkinson's disease ( PD ), or simply Parkinson's, is a long-term neurodegenerative disease of mainly the central nervous system that affects both the motor system and non-motor systems. The symptoms usually emerge slowly, and as the disease progresses, non-motor symptoms become more common. Usual symptoms are tremor, slowness of movement ...
Hace 3 días · Africa. Africa is the world's second largest and second-most populous continent after Asia. At about 30.3 million km 2 (11.7 million square miles) including adjacent islands, it covers 20% of Earth 's land area and 6% of its total surface area. [7] With 1.4 billion people [1] [2] as of 2021, it accounts for about 18% of the world's human ...
Hace 1 día · Language is a structured system of communication that consists of grammar and vocabulary. It is the primary means by which humans convey meaning, both in spoken and written forms, and may also be conveyed through sign languages. Human language is characterized by its cultural and historical diversity, with significant variations observed ...
Hace 3 días · For other uses, see Rocket (disambiguation). A rocket (from Italian: rocchetto, lit. 'bobbin/spool') [nb 1] [1] is a vehicle that uses jet propulsion to accelerate without using any surrounding air. A rocket engine produces thrust by reaction to exhaust expelled at high speed. [2]
Hace 1 día · It refers to the group of people in an individual's life that satisfies the typical role of family as a support system. The term differentiates between the "family of origin" (the biological family or that in which people are raised) and those that actively assume that ideal role.
Hace 3 días · The English word Christmas is a shortened form of 'Christ's Mass'. The word is recorded as Crīstesmæsse in 1038 and Cristes-messe in 1131. Crīst (genitive Crīstes) is from the Greek Χριστός (Khrīstos, 'Christ'), a translation of the Hebrew מָשִׁיחַ (Māšîaḥ, 'Messiah'), meaning 'anointed'; and mæsse is from the Latin missa, the celebration of the Eucharist.
Hace 2 días · Influenza, commonly known as " the flu " or just " flu ", is an infectious disease caused by influenza viruses. Symptoms range from mild to severe and often include fever, runny nose, sore throat, muscle pain, headache, coughing, and fatigue. These symptoms begin one to four (typically two) days after exposure to the virus and last for about ...
