We certainly experience sagging skin after significant weight loss, and many women have personally been through this post-pregnancy. But why do some women seem to recover so easily from pregnancy and weight loss, with minimal looseness while others get floppy skin?
"A lot of this has to do with age and genetics, and also a little good luck," explains California-based board-certified dermatologist Dr. Sandra Lee. "The older we get, the less elasticity we have in our skin, so a younger person who has significant weight loss will have a higher chance for less skin sagging than someone 20 years older," she adds.
Genetics plays a significant role as well – the level of elasticity in tissues is as hereditary as Uncle Ted's big ears. However, studies have shown that the more gradual the weight loss, the more favorable the outcome in terms of skin changes.
"With the new gastric bypass and lap band procedures becoming so popular, weight losses in the 100- to 200-pound range are becoming a reality," says Dr. Semira Bayati, board-certified plastic surgeon. After these types of surgeries, weight loss is usually rapid in the first year, leading to looser skin.
While eating a healthful diet has been shown in some cases to improve skin conditions, we also know that the more fat a woman has the more estrogen she produces, and estrogen and other hormones directly influence acne flareups.
Many women take birth control pills to get a little extra boost of estrogen to clear up acne, but others may find that an increase in estrogen may make their acne worse – especially as your weight goes down, and your estrogen levels haven't evened out for your new, slimmer weight.
Additionally, while losing weight on a diet full of fruits, vegetables and whole grains might be just what the doctor ordered, fad diets consisting of liquid, all-protein or even just cabbage soup can create nutritional gaps that affect your skin negatively.
Strict dieting can result in nutritional deficiencies that result in malabsorption of vitamins and minerals necessary for skin, hair and overall health of the body, Dr. Bayati explains.
Hair loss is very common with severe caloric restriction and also after gastric bypass operations.
A hair loss condition called telogen effluvium, which is triggered by a significant event that takes a toll on our body -- for example, childbirth, a car accident, a death of a significant other and even dramatic weight loss can prompt hair follicles to go through the death phase (telogen phase).
"It is usually three to six months after the significant event occurs that we may notice increased hair loss," says Dr. Lee, "this is because more hairs went through this 'death phase' but it takes months for new hairs to grow and finally push the dead hairs out."
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