The world has been put at risk of nuclear war because aging leaders with their finger on the button suffered from a litany of health issues that impaired their judgment, a shocking new study has revealed. The first medical analysis of its kind looked at the 51 leaders who have been in command of nuclear arsenals and since died. It found that 23 of them had concerning physical or mental health conditions that could have affected their decision-making abilities. Those conditions included personality disorders, depression, alcoholism, strokes, heart attacks, cancer and drug addiction, and one case where the leader was…