Eric I am very offended by your reply. You do not know me, therefore, you have no reason to accuse me of spending my time "playing on computers & video games", nor am I a "youngin'". I'm an outdoor person. I grew up not being allowed tv, telephone, movies, or video games. I grew up going fishing, camping, hiking, etc. & family vacations to state & nat'l parks every year & would rather do those things. The fact that you're a "middle-aged diabetic" means nothing. Having diabetes is tough (it runs big time in my family) but it really has little to do w/anything. Yes I know it can cause circulatory problems plus a host of other things but if one takes care of him/herself a person can be very active. Now, if I HAVE to explain myself as to why I have difficulty w/that hill, it's because I tore up my knee pretty badly & have little stability in my knee, knee braces don't even work as I would need a special-made one which insurance won't pay for so I need surgery but unable to get it at this time, therefore, I can't walk, sit, or stand for any length of time, nor can I get around very well at all w/o having to sit or rest, prop my foot up to rest my knee every 5-10 min & my knee swells up the size of a large grapefruit & causes me excrutiating pain w/my bones grinding together. But I goto parks & try to do other things anyway even if it takes me all day to get from one side of the park to the other. I used to work out, ALL the time, run 3 flights of stairs several times/day, etc. but I can't do that now so if I need the OE to assist me to get to the top of that hill, I'm using it. Now, I'm sure you didn't mean to be offensive but you should stop to think first that a person writing a certain post in reference to something such as this may not be as "able" as you are.