Because your cells start to die. And your cells die your skin gets wrinkly. you have dead skin cells and cells at the elbow.
Young skin typically has more collagen and elastin, giving it a smoother and tighter appearance. Old skin tends to have less collagen and elastin, leading to wrinkles, sagging, and looser skin texture. Additionally, aging skin may show signs of sun damage, such as age spots and increased dryness.
The skin is the body's fastest growing organ. Skin cells are constantly regenerating to replace old or damaged cells, allowing it to grow and repair itself rapidly.
When a person gets a cut on their skin, the skin cells that were at the location of the cut are gone. The cells around it will sense this and start reproducing and make new cells to replace the dead or damaged cells. They’ll stop the bleeding and form a scab, which eventually falls off.
It never causes a reaction
Cell division in animal skin tissue is responsible for growth, tissue repair, and regeneration. It helps to replace old or damaged skin cells, maintain the integrity of the skin barrier, and support overall skin function.
old skin is fairly easy to pierce whereas young skin is new and old skin has wrinkles young skin does not have wrinkles because the skin is stretchy
We have millions of skin cells on our body, and they grow, divide, and die off every day. When a person gets older, their blood is usually a lot thinner than when they were young, and that can lead to a weakening of skin cells. There is also a possibility that when a person gets older, there are more than enough cells on their skin to protect them, and so wrinkles form from the uneccessarily increased ammount of skin cells on our bodies in later life.
Some that I can think of... Vision gets worse. Hearing gets weaker. Memory gets worse. Hair falls out/turns grey. Skin wrinkles. Age marks appear on skin. Hair begins to grow in unwanted places...ears...etc...And depending on your health condition and how well you took care of yourself over the years...hopefully not too many bad things are going on inside your body at that time...
Skin: it starts to get wrinkles when they get close to being old.
it gets wrinklely
because they have wrinkles and some have grey hair and its the whiter their skin is.
terribly, you get wrinkles, more stress. and when you are older you will honestlly look terrible. i highly recomend not to smoke
So that it can grow as it will have just grown out of it's old skin.
people get old and fat and there skin gets wider
It gets old and then bacteria gets in.
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All reptiles shed their skin. Reptile skin doesn't 'stretch' like ours does. Instead, when the current skin gets too tight, they grow another one underneath. They shed (or slough) the old skin, and the new skin allows them to grow a little more.