If I remember right , it was O'Sensei who said:
"If you can walk , you can make Aikido".
So fortunately Aikido could be done almost by anyone , be it Mr.America or the average "6 cokes a day guy" (me
) , but isnt true also that if you look after your body he will take care of you?
As i see it , keeping a healthy body will (luckily) means having a longer life ...wich also means more Aikido