I was speaking with someone last week and they asked what's harder going up the hill or down the hill, I have a choice when I catch my bus to work. Down the hill is harder because I feel like I have just a smidge less control. Likewise down the stairs is harder for the same reason. I find I know longer think about stairs in my home during the day (how many trips I've made, how many more trips I have to make, what I have to get from one level to the other, etc.), I just do them. I know I overdo it almost daily as work full time and then support my elderly Mom since I would rather take the "hit" than have her try to take care of some stuff.