Researchers have reached the following conclusions but I don't know if the conclusions are true.
"In 2011, researchers presented findings at a meeting of the Endocrine Society in Boston that revealed that women in their 40’s and 50’s who have extensive skin wrinkling are much more likely than their peers to have low bone mass.
Researchers noted the relationship between wrinkles and bone density in every single bone tested which included hip, heel, and lumbar (spine). In addition, this relationship existed regardless of body fat percentage and age.
Epidemiological evidence of Asian women offers further health clues to the wrinkle mystery.
It is known that Japanese women have fewer wrinkles and less skin sagging that women of the same age living in North America. These two groups of women vary greatly in diet and lifestyle, however.
Even when Japanese women living in Tokyo were compared with women from the Asian cities of Shanghai and Bangok, however, they showed the least visible signs of aging.
Diet and lifestyle factors for these three Asian groups of women are comparable except for one notable exception: the consumption of natto in Japan.
Tokyo residents frequently enjoy natto, a strong smelling food traditionally made from fermented soybeans for breakfast. Natto is loaded with menaquinone, Vitamin K2, and blood samples of the Tokyo women revealed high circulating levels of this fat soluble vitamin.
Further research which bolsters the notion that getting plenty of anti-wrinkle vitamin K2 in the diet makes for smoother facial features is found in the research of Korean scientists and was published in the journal Nephrology in 2008.The rate at which the kidneys are able to filter the blood is an important measure of overall kidney function. Researchers found that reduced renal filtration rate was associated with increased facial wrinkling.Decreased kidney filtration rate predicts vitamin K2 deficiency according to research published in 2009."
We know there are a lot more factors involved .Wrinkles are an inevitable part of the natural aging process. As we become older our skin gets thinner, drier and less elastic. Our skin's ability to protect itself from damage is also reduced as we age. Eventually, wrinkles, creases and lines form on our skin. A person's genetic makeup also influences how wrinkly they become, and when and where wrinkles start appearing.
Smoking reduces blood supply to the skin. People with light skin tend to experience a higher level of sun damage.People who spend a lot of time with their skin exposed to sunlight will develop wrinkles more readily. If a person's parents developed wrinkles earlier than other people, their chances of also doing so are significantly higher than somebody whose parents developed wrinkles later than others.
People who repeatedly smile, frown, or squint will develop fine lines and wrinkles earlier than other who do not have these facial expressions so often. Vitamin C is important for its role in the production of collagen.Wrinkles can form when collagen breaks down.Vitamin C protects against discoloration and fine lines caused by UV damage. Essential fatty acids keep the skin plump and youthful. Antioxidants in fruits and vegetables fight damage caused by free radicals.I won't go into all the other things which influence the development of facial wrinkles.