Researchers have found that the prevalence of hair loss among the young, overweight, and obese has risen significantly in the last decade, a trend they attribute to the rise of the Internet and the Internet-based treatments available.
They found that by 2009, 20 percent of the patients who received a treatment were considered to be in the treatment group, up from 8 percent in 1999.
The study, published in the Journal of the American Medical Association, focused on patients aged 18 to 29 who had undergone cosmetic hair removal at one of the three dermatologists’ offices in the New York City area.
Researchers used a survey of 2,000 participants to examine whether there was an increase in hair loss from cosmetic treatments in the 1990s and whether it was related to an increase or decrease in obesity.
They looked at more than 9,000 patients, including 2,919 who had cosmetic procedures, 2,500 who had facial hair removal, and 571 who had hair loss treatment.
They compared the percentage of patients who had the procedure, the severity of their condition, and their treatment history to the general population.
They also looked at the prevalence and incidence of hair growth over time, as well as their relationship to weight, diet, and lifestyle.
Overall, the researchers found that cosmetic hair treatments were associated with a slight increase in the number of patients in the cosmetic group who had at least moderate hair loss.
But the authors caution that the results are preliminary and there was no statistically significant difference in the overall prevalence of obesity among the three groups.
They added that the overall risk of hair erosion increased with weight gain and was unrelated to the severity or frequency of hair regrowth.
In addition, the investigators note that many patients who have undergone cosmetic procedures are overweight and obese, and this was a strong predictor of the increased prevalence of weight loss.
More research is needed to examine the long-term health effects of the trend, including whether there are any associations with cancer or other conditions.