Cortisol and other hormones release a surge of energy in the form of glucose (sugar), which the body can use to fight or flee. That rush of glucose is no problem if your body's insulin response is working correctly.
Notice that the kittensâ ears are just beginning to unfold, though their eyes remain closed. Their sense of smell, hearing, and taste are slowly starting to develop. Tweed is only three days old. After almost a week, the kittens begin to wiggle around on their own a little bit and their eyes start to open.
When cats are born they come out with a film over the eyes. A newborn kitten cannot see at birth. It is a natural occurrence and is nothing to be worried about, unless the film remains after a certain period of time. The cat cannot walk, see, or even hear until they are about six or seven days old.