Hypothetically, if the threshold is normally -60mV, but now we have too much calcium on board, our threshold is now -50mv. That is a difference of 40mV that the cell has to account for in order to depolarize. In skeletal muscle, this can cause weakness, fatigue, etc. Too little calcium will cause the threshold to become more negative (gets closer to the resting membrane potential).
OK, this is probably going to come with you laughing at me... Once in a while I wake up with the back of my head sweating, and it`s more common when I take a nap during the day.
1 Fever, cold or sinus infection can also cause night sweats. 2  Nightmares can lead to a disturbed sleep and subsequently result in night sweating. 3  Medical conditions like sleep apnea can instigate sweating in the night. 4  A side effect of some medications can also trigger night sweats. The sweat glands in childrenâs body are more in number than us. 2  Fever, cold or sinus infection can also cause night sweats. 3  Nightmares can lead to a disturbed sleep and subsequently result in night sweating.