The United Nation's Millennium Development Goals, and the subsequent Sustainable Development Goals, define premature mortality as being a death under the age of 70.
As demographic change means more people are living longer than this, Peter Lloyd-Sherlock, professor of social policy and international development at the University of East Anglia, argues that this will lead to discrimination against older people.
Read the full analysis:
http://www.bmj.com/content/354/bmj.i4514