Angela Merkel shakes disturbingly during the German national anthem.

You see her here standing next to Ukrainian President Volodymyr Zelensky on a hot day in Berlin:

Afterwards, she said "Since then I have drunk at least three glasses of water – I obviously needed that and so I'm doing very well now."

The Mayo Clinic website does not list shaking as a symptom of dehydration.

About that German national anthem (from Wikipedia):

The song is also well known by the beginning and refrain of the first stanza, "Deutschland, Deutschland über alles"... but this has never been its title. The line "Germany, Germany above all" originally meant that the most important goal of 19th-century German liberal revolutionaries should be a unified Germany which would overcome loyalties to the local kingdoms, principalities, duchies and palatines (Kleinstaaterei) of then-fragmented Germany.

The melody of the "Deutschlandlied" was written by Joseph Haydn in 1797 to provide music to the poem "Gott erhalte Franz den Kaiser" (English: "God save Franz the Emperor") by Lorenz Leopold Haschka... Haydn's work is sometimes called the "Emperor's Hymn". It is often used as the musical basis for the hymnal "Glorious Things of Thee Are Spoken".

Losing physical control during the German national anthem got me thinking about the last scene in "Dr. Strangelove."

That said, I hope Angela is doing fine, I think Haydn wrote a beautiful song, and I have participated in the singing of "Glorious Things of Thee Are Spoken" many times.

"Life spans measured in years don’t take into account how fast we live them."

Bernard Holland says, as he looks at the lives of great composers:

Composing at the speed of life (forgive me), Schubert at 31 was like any normal musical genius at 65....

Schubert was ill [in 1827-1828], probably with venereal disease, and knew it. He was also eaten up by too much drinking. Given the time spent sleeping, taking meals, visiting friends and going to concerts, it is a puzzle how Schubert found time to copy all this music out, much less think up what to write. Forty composer-years were lived in about one and a half....

On the other hand, what more would Chopin have produced had his Paris doctors had the anti-consumption drugs that have since rendered tuberculosis sanitariums nearly obsolete?...

Sometimes the spirit outlives the body that houses it. Haydn in old age, broken and exhausted by “The Creation” and “The Seasons,” said musical ideas assaulted him physically when he no longer had the strength to act on them.

Most of us rely on the belief that we will live a long time, and we fail to accomplish things quickly in the energy of youth. There's plenty of time later. But maybe there isn't, or maybe there is, but you won't do much with it. You'll have a different sort of body and mind when you're older, and it may not do those things the younger you had planned for it.

And don't you wish you could be like Haydn, so beset by your own creativity that you feel your ideas are physically assaulting you? It would be sad if you reached the point where you couldn't do anything about those ideas, but how wonderful to know, even as you approached death, that the full force of creativity still lived in you. It is so much more likely that you will feel well enough but find nothing inside you that demands your artistic work.