Down syndrome

Down syndrome

A range of birth defects caused by the foetus having an extra copy of chromosome 21 (trisomy 21).

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Industry/Domain: Health care
Category: Sexual health
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down syndrome

Parenting; Pregnancy

The most common chromosomal abnormality, Down syndrome results when a fetus has an extra copy of chromosome number 21. It causes mild to severe mental retardation, as well as ...

down syndrome

Science; General science

The set of physical, mental, and functional abnormalities that result from trisomy 21, the presence in the genome of three, rather than the normal two, chromosomes 21. Down ...

down syndrome

Health care; General

A genetic disorder characterized by some degree of mental retardation and by various physical malformations, such as slanted eyes and a broad face.

Sigmund Freud

Health care; Sexual health

(1856–1939) Influential psychoanalyst who believed that we must understand human sexuality if we are to understand human nature. He understood that children have strong sexual ...

Havelock Ellis

Health care; Sexual health

(1859–1939) English author of Studies in the Psychology of Sex (1903–28). Until 1935, Ellis’s Studies, which argued that erotic dreams, foreplay, and masturbation were normal, ...

Katharine Bement Davis

Health care; Sexual health

(1860–1945) Completed the first major study on women’s sexuality, Factors in the Sex Lives of Twenty-Two Hundred Women, which was published in 1929. She gathered data for more ...

Magnus Hirschfeld

Health care; Sexual health

(1868–1935) German sexologist who founded the Institute of Sexual Science in Berlin in 1919. He studied human sexuality in order to provide counseling for sexual problems. He ...

Marie Carmichael Stopes

Health care; Sexual health

(1880–1958) Opened the first British birth control clinic in 1921. One of her books, Married Love, was declared obscene by the U. S. Customs in 1921 because it described the ...

Margaret Sanger

Health care; Sexual health

(1883–1966) Founder of Planned Parenthood Federation of America, Margaret Sanger began her career as a nurse who fought to legalize birth control in order to prevent women from ...