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Well, it looked like you guys were having a ton of fun. Staying active will also do the trick, as if one were to sit still, then one can turn into an ice block methinks. Funny that you mention having old circulation, as I also suffer from it, and the heat is really not a great helper, as it makes one's blood thicker. So, I have to take a blood thinner pill every day.
Such is life.

!PIZZA
!BEER