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.
About ten to 14 days after birth, the kitten will slowly start to open her eyes. It will begin as a thin slit. Slowly but surely the eyes will open completely and shed the film. Short haired kittens will usually open their eyes faster than long haired cats. When the cat first opens her eyes they will most likely look blue, but over time the actual color of the eyes will start to show.