To do something dangerous that will risk someone's existence together with his or her body faculties (used to emphasize and often overstate the danger associated with an action).

A cultural, political, and religious right to life belief opposed to abortion, capital punishment, economic injustice, euthanasia or assisted suicide, and war.

(evolutionary biology) A principle of asymmetry in selective pressure between predators and prey.

Alternative form of life-dinner principle

(chiefly US) Alternative form of new lease of life

To commit suicide. / To spend the rest of one's life a certain way.

Synonym of bet one's bottom dollar

plural of time of one's life

(idiomatic) Something or someone who poses a significant problem to an individual.

plural of bane of one's life