Vod knows (or learns now) that I like their posting style, habits and behaviour. But, I generally tend to dislike health related topics, because I consider health an absolutely private matter.

But, nevertheless, his health seems to be in trouble, which is normal, isn't it? I mean, stress, pressure and age can cause health issues.

The truth is that every president is supported by a large staff, and while the president is always the public face, the actual work is usually done by their staff and their close trusted associates.