For example, if a person reduces his body fat from 35% to 20%, he should be very happy, but don't complain that his skin is slack and his body fat content is still high. Keep trying to be slimmer.

The average body fat of normal teenagers is about 16%, and the beneficial body fat is about 10- 12%. Single-digit body fat is very thin (if your body fat is not single-digit, don't expect to have 100% tight abdominal muscles and torn muscle lines, and the content of women will be lower than that of teenagers).

Except for some extreme cases, you don't often see loose skin, but you have little body fat. How tight can your skin be? Once your body fat goes from "average level" to "excellent level", your skin will start to cling to your abdominal muscles. These are all things that need special attention. There are few reasonable single digits of body fat, and the skin is too loose.

Therefore, the secret of firming skin is to lose more body fat until your body composition level is better than "average" (good or great level, not ok). Only when you reach your long-term body fat goal can you consider "removing excess loose skin". At this point, it must be admitted that some people really can't stand the existence of so much slack skin and have to have surgery.

However, unless you are extremely thin, it is difficult to see which skin is loose. When the remaining fat is lost, you should consider how to maintain proper fat and how to improve the firmness of the skin.

1 1 Things to know about skin relaxation.

1, skin is more elastic than you think.

Go and see those pregnant women. The skin can stretch and contract to a surprising extent.

2. The elasticity of skin decreases with age.

Wrinkles and lack of elasticity are inevitable changes with age, and are also caused by external environmental problems such as oxidative stress, excessive sun exposure and insufficient nutrition. You can make up for the environment, but you can't change your genes and age.

Suggestion: Take exercise and change what you can. Be realistic and don't think too much about what you can't do.

How tight your skin will be depends on your age.

The older you get, the thinner you get, and the harder it is for loose skin to return to its previous firmness.

4. How much weight you exceed has a lot to do with how tight your skin can recover after losing weight.

For example, pregnant for 9 months, more than 100 kg in September.

5. Weight has a great relationship with the firmness of skin recovery.

Your skin can only stretch so far, you want to be full of elasticity.

6. How thin is related to skin firmness.

Rapid slimming makes the recovery time of skin much slower than slimming time. This is one of the reasons why some people find it difficult to lose weight. It is 1-2 kg per week, with a maximum of 3 kg. If you need to lose a lot, you must first measure your body fat content to make sure that you are losing fat, not fat-free tissue.

7. There are exceptions to the above.

For example, a person in his fifties or sixties loses a lot of weight rapidly, and their skin can be 100% restored to its previous state.

8, the market says that it can reshape the skin and tighten the cream.

It's useless, at least it's not lasting and unpredictable, especially if your skin is too loose. So don't waste your money.

9. Don't use surgery as a last resort.

If you are considering whether to have a cosmetic surgery, consult a surgeon, because it's a minor operation, but remember, your money for plastic surgery and abdominal plastic surgery can buy him a BMW. Because he will let you have an operation that is not really necessary. Do not have surgery unless it is special or absolutely necessary.

Give your skin some time.

The less body fat you have, the tighter your skin will be. After a year or two of weight loss and long-term exercise, many people's skin gradually becomes tight, at least partially tight.

1 1, and know your body fat content before operation.

Loose skin is a problem, but there is still fat, which is another problem. Be honest with yourself and calculate your body fat content. This can be measured by subcutaneous fat caliper or other facilities (if you have a large area of skin relaxation, caliper may be of little use, or you can try impedance analysis, underwater weighing, dual-energy X-ray, exhaust measurement).