Changes in total body weight vary for men and women. Men often gain weight until about age 55, and then begin to lose weight later in life. This may be related to a drop in the male sex hormone testosterone. Women usually gain weight until age 65, and then begin to lose weight.
“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.
Conversely, losing weight in your 30s and 40s is more difficult than when you're a young adult. (Men and women tend to put on little or no weight after age 40 and lose weight in their 70s, according to HHS.)
Tissue loss reduces the amount of water in your body. The amount of body fat goes up steadily after age 30. Older people may have almost one third more fat compared to when they were younger. Fat tissue builds up toward the center of the body, including around the internal organs.
Most people begin to notice a shift in the appearance of their face around their 40's and 50's, with some also noticing a change in their 30's. But with these physical changes brought on by aging also comes a change in the appearance of our face - Luckily, there is treatment available.
Your body shape begins to change around age 30. 5 These changes occur because of a decline in muscle mass and an increase in body fat. But, getting regular exercise and eating a nutritious diet may help delay some of these age-related body changes. Learn More: What Is Body Composition?
According to the study by supplement company Forza, turning 30 is the biggest inspiration for both men and women to lose weight.
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.
The first place men typically lose weight is the belly, while women tend to lose weight all over, but hold onto weight in their thighs and hips, Dr. Block explains.
Those extra pounds were packed on in early adulthood: The average American gained about 17.6 pounds from their mid-20s to mid-30s, the study found. Meanwhile, the average person gained about 14.3 pounds between their 30s and 40s, 9.5 pounds between their 40s and 50s, and 4.6 pounds between their 50s and 60s.
Weight gain is common as we age. As you move through your 20s on to your 30s, you may notice subtle changes in your waistline, and an increasing tendency to gain weight. We should however be mindful that metabolic rate does change as we get older because of the decline in our muscle mass.
In terms of how your body looks, “it usually takes 4 weeks for your friends to notice weight loss, and 6–8 weeks for you to notice,” says Ramsey Bergeron, a certified personal trainer. “Your friends who don't see you every day are much more likely to see a change than someone you're around all the time,” he adds.
Many women also notice an increase in belly fat as they get older — even if they aren't gaining weight. This is likely due to a decreasing level of estrogen, which appears to influence where fat is distributed in the body.
Over time, studies have shown that metabolic rate (how fast we burn calories) starts to slow down by 2 to 3 percent each decade, beginning in our 20s. It becomes more noticeable between ages 40 and 60.
People who carry more weight tend to look a little younger. How much younger? Twin studies revealed that a person who has a BMI 4 points higher can look 2-4 years younger. The reason is that the face naturally loses fat as we get older.
It is a progressive loss of lean muscles as you get older, particularly in your arms and legs. Loss of muscle mass is an inevitable part of ageing, but the loss of too much muscle results in a condition known as sarcopenia, which literally means 'poverty of the flesh. '
Chest & Neck
Since the skin along the chest and neck is especially thin, the pull of gravity quickly reveals signs of age as the skin begins to sag and wrinkle. Certain habits, like smoking, can also prematurely wrinkle the skin on the chest, neck or any part of your skin.
Muscle is denser than fat, and as it is more compact within your body, as you gain muscle mass, you end up looking thinner, no matter your physical weight. So, if you've been doing a lot of strength training lately, it's likely this is the reason that you're looking fantastic but not dropping those numbers.
By burning more calories than you take in, your body gets the triglycerides out of storage in your fat cells to convert them to energy, reducing the size of your fat cells and changing your body shape.
As your body metabolizes fat, fatty acid molecules are released into the bloodstream and travel to the heart, lungs, and muscles, which break them apart and use the energy stored in their chemical bonds. The pounds you shed are essentially the byproducts of that process.
Daily weigh-ins.
If you're really committed to losing weight, weighing yourself every day can be helpful. Research shows that people who weigh themselves every day have even more success with weight loss than those who weigh in once a week.
One of the primary reasons losing weight is harder to do as you grow older is due to a slowing metabolism. It is estimated that your metabolism slows down 5% every decade after you turn 40. This can occur because of the loss of muscle (or sarcopenia) which plays a crucial part in maintaining your metabolism.