A purity ring made from sterling silver.<unk> s are commitments made by people, often though not always teenagers and young adults, to practice<unk> , usually in the case of practicing teetotalism with respect to abstaining from alcohol and other drugs, or chastity, with respect to abstaining from sexual intercourse until marriage; in the case of sexual<unk> , they are sometimes also known as purity<unk> s or virginity<unk> s. They are most common in the United States among Catholic and Evangelical Christian denominations, while others are nonsectarian.
Abstinence pledge
Bruce protocol
Lamaze technique
Selective reduction
Up-and-down procedure
Gum lift
Tightlacing
Ashby technique