Not long ago a 70-year-old American woman died of cardiac arrest a few hours after Barack Obama entered her restaurant. That’s what I would call ‘to die of happiness’. That poor woman had no idea of the President’s visit, and moreover she was a great Obama’s fan. So can people really die of happiness? According to experts, it is possible. Emotional arousal can lead to heart attack, stroke and other potentially fatal conditions. Our body reacts to excitement as well as to the feeling of fear or stress, producing adrenaline and noradrenaline. These hormones trigger the reaction to “fight or flight,” which prepares us to the dangerous situation. But excessively high level of these hormones in the blood can be dangerous for our heart, brain and other organs. This is especially harmful for people with heart diseases, and for older people, as it can lead to death.