It’s has cell wall to keep it safe
Well, if you are able to put it in your own words, centuries back, when are ancestors were alive, we didn’t have things like McDonald’s. For a lot of people back then, they wouldn’t eat for a day or two then find a buffalo or something then eat it, and most of the time, they were running all day every day trying to find food. Getting lots of exercise. Nowadays, u can get into your car, and drive to A fast food place and get whatever u want. With no exercise.
Hazing is generally used to make people do ridiculous things to join a group.
At the onset of a muscle contraction, the presence of calcium triggers the opening of the Na-K channels in the membrane. Potassium is a calcium inhibitor, so as the potassium flows out of the cell, it eventually reduces the presence of calcium. This causes the closure of the Na-K channel (negative feedback mechanism). In a hypokalemic state, the lack of sufficient K doesn't inhibit the calcium channel, and in turn doesn't properly terminate the muscle contraction at the cellular level.
