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Face it: Twins who smoke look older

Date:
October 30, 2013
Source:
Wolters Kluwer Health: Lippincott Williams & Wilkins
Summary:
Twins who smoke show more premature facial aging, compared to their nonsmoking identical twins, reports a study.

Twins who smoke show more premature facial aging, compared to their nonsmoking identical twins, reports a study in the November issue of Plastic and Reconstructive Surgery, the official medical journal of the American Society of Plastic Surgeons (ASPS).

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The study finds significant differences in facial aging between twins with as little as five years' difference in smoking history, says a new report by ASPS Member Surgeon Dr. Bahman Guyuron, Professor and Chairman, Department of Plastic Surgery, University Hospital Case Medical and Case School of Medicine, Cleveland. The results also suggest that the effects of smoking on facial aging are most apparent in the lower two-thirds of the face.

Facial Aging in Smoking vs Nonsmoking Twins

Taking advantage of the annual Twin Days Festival, held in Twinsburg, Ohio, the researchers identified pairs of identical twins who differed by smoking history. In each pair, either one twin smoked and the other did not, or one twin smoked at least five years longer. Fifty-seven of the 79 twin pairs studied were women; the average age 48 years.

A professional photographer took standardized, close-up photographs of each twin's face. The twins also completed questionnaires regarding their medical and lifestyle histories.

Without knowledge of the twins' smoking history, plastic surgeons analyzed the twins' facial features, including grading of wrinkles and age-related facial features. The goal was to identify "specific components of facial aging" that were affected by smoking.

Scores on several measures of facial aging were significantly worse for the smokers. The smokers had more sagging of the upper eyelids, as well as more bags of the lower eyelids and under the eyes. Twins who smoked also had higher scores for facial wrinkles, including more pronounced nasolabial folds (lines between the nose and mouth), wrinkling of the upper and lower lips and sagging jowls.

Among twins with more than five years' difference in smoking history, the average difference in smoking history was 13 years. Twins with a longer duration of smoking had worse scores for bags on the lower lids and under the eyes and lower lip wrinkles.

New Insights into Why Smokers Look Older

Most of the smoking-related differences affected the middle and lower thirds of the face. There were fewer differences in aging of the upper face, such as forehead lines or "crow's feet" around the eyes.

In most cases, the examiners were able to identify the smoking or longer-smoking twin based on the differences in facial aging, as rated in photographs. The twin pairs were similar in other environmental factors that can affect facial aging, including sunscreen use, alcohol intake, and work stress.

Smoking is one of several lifestyle factors that have been linked to premature facial aging. However, few previous studies have focused on those aspects of facial aging that are most affected by smoking. The Twin Days Festival provided a unique opportunity for detailed analysis of facial aging in twins who differed by smoking history.

The results show differences in several markers of facial aging for identical twins who differ by smoking history -- especially in the middle and lower face. "It is noteworthy that even among sets of twins where both are smokers, a difference in five years or more of smoking duration can cause visibly identifiable changes in facial aging," Dr. Guyuron and coauthors write. The study also provides clues as to the cellular-level mechanisms by which smoking leads to premature aging, which may differ for different facial features.


Story Source:

The above story is based on materials provided by Wolters Kluwer Health: Lippincott Williams & Wilkins. Note: Materials may be edited for content and length.


Journal Reference:

  1. Haruko C. Okada, Brendan Alleyne, Kaveh Varghai, Kimberly Kinder, Bahman Guyuron. Facial Changes Caused by Smoking. Plastic and Reconstructive Surgery, 2013; 132 (5): 1085 DOI: 10.1097/PRS.0b013e3182a4c20a

Cite This Page:

Wolters Kluwer Health: Lippincott Williams & Wilkins. "Face it: Twins who smoke look older." ScienceDaily. ScienceDaily, 30 October 2013. <www.sciencedaily.com/releases/2013/10/131030092900.htm>.
Wolters Kluwer Health: Lippincott Williams & Wilkins. (2013, October 30). Face it: Twins who smoke look older. ScienceDaily. Retrieved December 21, 2014 from www.sciencedaily.com/releases/2013/10/131030092900.htm
Wolters Kluwer Health: Lippincott Williams & Wilkins. "Face it: Twins who smoke look older." ScienceDaily. www.sciencedaily.com/releases/2013/10/131030092900.htm (accessed December 21, 2014).

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