The best part is now you are closer to 50 then 30! 
see it helps to put it into perspective doesn’t it?
what–that doesn’t help? hmm…that is what most people say when I try and point that out!
Happy Birthday, Shirley! How could I have forgotten my Doper twin sister’s birthday? (I have a vague recollection that we have a brother around here somewhere, too, but I forget who it is. I’m sure the lack of recalling has NOTHING WHATSOEVER to do with my age, thank yew very much.)
And then I forgot to wish KSO a belated Happy Birthday. I’m WAY too young to have a swiss cheese brain.
And like a bottle of wine, make sure she stays horizontal, so her cork can stay wet, and so it doesn’t rot out and dribble all over the floor.
I’ve had Swiss Cheese Brain for years already! At least it isn’t rotten.
Happy Birthday to you, too!
Hey, I turned 30 yesterday. I guess I’m in my 4th decade. Happy birthday!
0 is not a counting number. There is no year 0. The moment you are born you are in the first year of your life. Your first birthday is on the *anniversary *of your birth, not the *day *of your birth. It signifies that one year has passed; that year is called Year One.
A decade is ten years. After you have lived one year, (Year One), you have completed the first year of that decade. After you have lived ten years, (Year Ten), you have completed the tenth year of that decade. The decade is now over. When ten years have passed after the moment of your birth, (the years 1 - 10), you begin your second decade.
In the case of the OP, forty years have passed since the moment of her birth. Her age is forty. She is beginning her fifth decade.
A belated Happy Birthday. Take heart that you are only a few days older than myself.
Soon, with your impending loss of bowel controls, they’ll be swiss cheese underpants.