. bummer. Too Much Sitting May Shrink the Part of Your Brain Tied to Memory As a PCA assisting 3 ppl currently, a couple [both wheelchair-users] & a quadraplegic man, i spend a lot of time in-between tasks, SITTING & waiting whilst on-call. This is an inevitable part of the job; i can't go jogging & be within voice-distance, i can't lift free-wts & hear my client's soft, breathy voice from the other room. I'm going to have early-Alzheimer's, at this rate. - terry .