Ok, I was one of those people raised with the idea that women over 40 shouldn't show their upper arms. And frankly I cut the sleeveless shirts out of my wardrobe at age 30 once I gained 100 lbs. No big loss really, living in the great white North.
I move to the South (where this year we had more than 85 days of temperatures over 90 F). Michelle Obama proves a woman over 40 can have very attractive arms. Clothing designers seem to decide that dresses don't need sleeves anymore...
So I drop 100 lbs. Workouts include lap swims, push ups, and tricep exercises. As I have to replace my wardrobe, a fair number of sleeveless items are included...
And I'm too fr*()&)(&ing cold to wear any of them without a sweater or jacket over them!!!
Thanks for listening...

That's annoying and wonderful all at the same time.
[typed while sitting with a personal heater at her feet beneath the desk]
I remember it used to be that way as a kid. Then it got to the point where I looked forward to cooling off in the frozen foods! 