Interesting article! When fatigued, my hands tend to ball up into tight fists, and picking up objects becomes a chore of telling my hands and arms to work together instead of fighting against each other and I usually end up mauling whatever object it is I'm trying to gently pick up. Never knew this was a common experience, and knowing that others deal with it somehow lessens my frustration a bit. Thank you to whomever took the time to post this article.

Zen