I live in a country where annual checkups are mandatory (companies are fined by the government a lot of money for each employee who does not get it done). I've been told a couple times now that something is a bit off, not too concerning by itself, but it requires more tests to rule out suspects from a list. had a lot of blood tests done, nothing unusual came up, still being regularly told to keep doing tests in between checkups. I can say perhaps one of the upsides is I get nudged by the doctors to keep a healthy lifestyle.