a fact of life

a fact of life

an unpleasant fact or situation which people accept because they cannot change it (not used with the ) She grew up in Northern Ireland during the 1970s when violence had become a fact of life.
See also: fact, life, of
References in periodicals archive ?
During a time when chicken pox, strep throats and the flu - not to mention mysterious tummy aches - are a fact of life, the slight, blonde girl never failed to make it to school.