Frailty is a distinctive health state related to the ageing process in which multiple body systems gradually lose their in-built reserves. This means the person is vulnerable to dramatic, sudden changes in health triggered by seemingly small events such as a minor infection or a change in medication.
BJPCN, Volume 12, Special Issue 1, Jan-Feb-Mar 2015
PCCJ, Volume 8 Number 1, Jan-Feb-Mar 2015