Your body shape changes naturally as you age. You cannot avoid some of these changes, but your lifestyle choices may slow or speed the process. The human body is made up of fat tissue, lean tissue (muscles and organs), bones, and water. After age 30, people tend to lose lean tissue.
After age 30, people tend to lose lean tissue. Your muscles, liver, kidney, and other organs may lose some of their cells. This process of muscle loss is called atrophy. Bones may lose some of their minerals and become less dense (a condition called osteopenia in the early stages and osteoporosis in the later stages).
With age, your skin thins and becomes less elastic and more fragile, and fatty tissue just below the skin decreases. You might notice that you bruise more easily. Decreased production of natural oils might make your skin drier. Wrinkles, age spots and small growths called skin tags are more common.
New study says decline begins in our 50s
Be proactive about your strength, balance and endurance as you age. By the time you reach your 50s, your strength, balance and endurance are already beginning to wane — much earlier than previously thought, according to a new study.
CHEST & NECK
The skin on your neck tends to be one of the first body parts to show signs of aging, because it is thinner and more delicate than the skin on the rest of your body. Similar to the face, your neck and chest can also develop fine lines and wrinkles.
Skin changes are among the most visible signs of aging. Evidence of increasing age includes wrinkles and sagging skin. Whitening or graying of the hair is another obvious sign of aging.
It's when your body looks older than your actual age. The most common signs of premature aging include: Skin changes like wrinkles, age spots, dryness, loss of skin tone, hyperpigmentation around your chest and sagging. Hair loss or graying hair.
Natural changes happen in the body as we age, such as skin damage from sun exposure, loss of muscle and physical strength, loss of some sight and hearing, as well as changes to our sleep patterns, energy levels and appetite.
The most common cause of sarcopenia is the natural aging process. You gradually begin losing muscle mass and strength sometime in your 30s or 40s. This process picks up between the ages of 65 and 80. Rates vary, but you may lose as much as 8% of your muscle mass each decade.
“Obesity incidence starts increasing in one's twenties and peaks at 40 to 59, and then decreases slightly after age 60,” says Craig Primack, MD, an obesity medicine physician at the Scottsdale Weight Loss Center in Arizona.
Normal weight loss.
As you get older, you start to lose lean body mass like muscle and bone density. As early as age 30, our lean body mass starts to drop by a little over half a pound each year. You might not notice a change when you step on the scale, because the lean weight you lost is often replaced by fat.
A combination of things happens as we age. We tend to lose muscle mass, so our abdominal muscles aren't as tight as they once were, and the loss of elastin and collagen in our skin allows gravity to have its way so skin starts to sag. Both can cause the waistline to expand.
According to the National Institute of Health, some of the most essential factors to aging well are within your control. To prolong your youth, make an effort to maintain a target blood pressure, lower your cholesterol, maintain a healthy weight, exercise regularly, drink alcohol in moderation, and avoid smoking.
As you age, your muscle mass decreases and your fat mass increases. Fat is less metabolically active than muscle—you don't need as many calories to maintain fat as you do to maintain muscle. Hormonal changes can also lead to weight gain.
“Retinol and alpha-hydroxy acids (AHAs) can rejuvenate the skin and eliminate fine lines and wrinkles,” Dr. Patel says. “Hyaluronic acid helps your skin retain moisture, which gives it a smooth, glowing look.” Opt for serums and night creams with retinol and AHAs, and a daily face moisturizer with hyaluronic acid.
For Caucasian women, it's typically around the late 30s. "This is when fine lines on the forehead and around the eyes, less-elastic skin, and brown spots and broken capillaries from accumulated sun damage crop up," says Yagoda. If you're a woman of color, the tipping point is more likely in your 40s.
Loss of muscle tone and thinning skin gives the face a flabby or drooping appearance. In some people, sagging jowls may create the look of a double chin. Your skin also dries out and the underlying layer of fat shrinks so that your face no longer has a plump, smooth surface.
Official definitions
Most developed Western countries set the retirement age around the age of 65; this is also generally considered to mark the transition from middle to old age. Having one's age within this range is commonly a requirement to become eligible for senior social programs.
Skin Changes
Wrinkles, age spots, creases, and bruises become more noticeable. Your sweat glands also get less active. That means you might not sweat as much, but wounds on your skin may take longer to heal.
Traditionally, the “elderly” are considered to be those persons age 65 and older.
Fatty foods, high sugar content, lots of alcohol and caffeine, and heavy dairy are the staples of poor nutrition after 70.
Middle Age Adult = 40-59 yrs. Senior Adult = 60+