The answer is A, Chemical to Mechanical.
Hope I helped!
In Bell's palsy, the facial nerve that is injured and inflamed causes symptoms like twitching, weakness, or paralysis on one side of the face, sometimes both; drooling; a drooping eyelid or one corner of the mouth droops.
<span>During a micro-sleep, you are likely to have a blank stare, sudden shake of the body, head snapping and you are not able to recall a last minute.
The duration of micro-sleep are from 1 second to 30 second.
It can happen to anyone and at any time of the day. there are many reason of micro-sleep and it is said to be dangerous, especially when you are driving.
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