Have you ever wondered why the Prime ministers die prematurely?

The political leaders, who assume the reins of government as presidents or…
prime ministers, face the risk of premature death by about three years, according to a new american scientific study. On the other hand, a second uk research shows that members -at least in Britain – have a lower mortality compared with the general population of the country. The two studies were published in the christmas issue of the british medical journal ‘British Medical Journal’ (BMJ).
The first investigation, headed by the associate professor of the Medical School of Harvard University Ανουπάμ Jenna, confirmed the widespread belief that heads of states and governments often they get old and die before their time because of the increased stress of their duties and, more generally, of political life. The researchers compared data for 279 politicians who were elected to the top office of governance in 17 countries, with 261 other πολιτικιούς who never became presidents or prime ministers.
The data relating to the period 1722-2015. Scientists have calculated that an elected president or prime minister lives an average of 2.7 fewer years and has a 23% greater risk of premature death, compared with a politician that has a similar function. As said Jenna, “it seems that the leaders consider national priorities far more pressing than to eat right and exercise”. The second study, led by dr Tim crayford and analyzed data on mortality of about 5,000 members of the House of commons and the House of Lords in Britain during the period 1945-2011, by comparing the mortality in general of the british population. The analysis showed that the members have an average of 28% less mortality (i.e., die more slowly) compared with the general population, while for the lords, the mortality is even lower (by 37%). The mortality is smaller between the members of the Conservative party in relation to the other british parties. Also, the members elected for the first time after the age of 60, have a lower mortality than those who are members younger.
Source