I remember it. The great thing about a new decade is you go into your early somethings again instead of late somethings, so it's like you get younger. Don't let it fool you, though, because the hangovers still take longer to get over.
The not so great thing is early fifties sounds a lot older than late forties All the birthdays ending with a -9 are the ones you want to cling on to.
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I remember when I was 50, I could still manage stairs then without my knees aching afterwards. I was also skint as I had two kids at university at the same time