Why Can’t You Clench Your Fist Right After Waking Up?

When you wake up, it takes some time to get the electrolytes flowing through the muscles in your hands again. That’s why you may not be able to make a fist right after waking up. This effect is more pronounced if you don’t wake up naturally. Balling up your palm to complete a fist is fairly easy. Isn't it? But try doing that right after you wake up after a good night's sleep. You'll realize it isn't 'easy' anymore. So why this seemingly simple activity is so challenging to finish just after you wake up from sleep? Watch the video to find a scientific answer to this question.