What happens to skin with Aging?
Our skin is exposed to the elements as we age: external forces like the sun, harsh weather and bad habits. But some causes are preventable, and we can work on these to help our skin stay supple and youthful.
How our skin ages depends on several factors including our lifestyle, diet, heredity, and other personal habits. Smoking for example creates free radicals. Free radicals are formerly healthy oxygen molecules that have become overactive and unstable. Free radicals damage cells and as one of the effects of cell damage is premature wrinkling.
Primary factors include
- normal aging (intrinsic),
- exposure to the sun (photoaging)
- loss of subcutaneous support (fatty tissue between your skin and muscle).
Many factors contribute to age-related changes in skin. Think about all the activities we do everyday all through our lives, such as facial movement and expressions and also the forces that we continually work against – like gravity and physical or mental stress.
Skin Changes That Come With Age
As we grow older, changes like these naturally occur:
- Skin becomes rougher.
- Skin develops lesions such as lumps / tumors.
- Skin becomes slack. The loss of the elastic tissue (elastin) in the skin with age causes skin to hang loosely.
- Skin becomes more translucent. This is caused by thinning of the epidermis (surface layer of the skin).
- Skin becomes fragile. This is due to flattening of the area where the epidermis and underlying dermis come together.
- Skin bruises easily due to thinning of blood vessel walls .
Changes beneath the surface of the skin also result in changes in appearance with age.
Hollowing: the young contour of temples and cheeks are formed by healthy fat pads beneath the skin. These fat pads shrink and separate with age. Skin appears looser, eyes sunken and temple hollowing gives a “skeletal” appearance.
After age 50, we often start losing bone thickness in the lower face. This makes skin look puckered, especially around the mouth and chin. Cheeks sag below the jawline, causing jowling.
Sun and Your Skin
Sunlight, UV-A and B rays even on cloudy days are the main cause of aging skin.
With recurrent or long term exposure, UV light such as sunlight damages elastin, causing it to breakdown. This makes skin stretchy and saggy as it cannot snap back after stretching. Skin that lacks collagen and elastin will bruise and tear easily but take ages to heal.
Most of these changes cannot be noticed until they have progressed beyond the skin’s ability to repair itself. So if you are young the injury from sunbeds and sunburn happens silently in the background. The damage will become obvious in later life.
Nothing can totally reverse the damage from sun/ uv rays. But skin does repair itself to an extent when it is healthy. It is always a good time to start protecting yourself from sun exposure and skin cancer.
You can delay premature aging skin from sun damage, by remembering to to stay out of the sun , covering up, wearing a hat, and making a habit of using sunscreen spf30+ daily.
As skin becomes less elastic and supple, expression lines no longer fade when expression muscles relax (usually after about 35 years of age). Some of us who have familial heavy or saggy brows, or lax upper eyelids, will constantly use the forehead muscle (frontalis) to open our eyes wide. This action is often involuntary and we don’t know that we are doing it. Frowning to concentrate or focus the eyes is similar. These make horizontal creases appear on the forehead, “11” lines between the eyebrows at the root of the nose (glabella).
Sleep creases are due to habitual pressure, and can persist in aging inelastic skin. The hairline, temples, cheeks are prone to this. Lying on your back when sleeping may help a bit.
Dry skin and itching is common in later life. Elderly people suffer more from dryness in winter (“winter itch”) as heated indoor air is dries the skin. Aging skin loses its oil glands and stops hydrating itself. Strong soaps, hot baths and some prescribed medications make dry skin even worse.