There are a number of misconceptions about the interaction between sunlight and skin. In this two part post we look at what we think are the top five most common sun and skin myths.
Myth 1: I can’t get sunburnt on a cloudy day (more…)
Top five sun and skin myths (part 1)
Thursday, February 2nd, 2012Low sunscreen use, high melanoma rates: a breakdown of the sunsmart message?
Tuesday, January 24th, 2012
It’s estimated that more than 9,000 Americans will die from melanoma this year and 76,000 new cases of the disease will be diagnosed. Melanoma, an aggressive skin cancer which can spread (metastasize) quickly to other parts of the body, is also the second most common form of cancer in young Americans (those aged 15-29).
Overexposure of skin to ultraviolet (UV) radiation significantly increases an individual’s risk of melanoma, particularly at a young age; just one severe sunburn in childhood can double the lifetime risk of melanoma. Sun protective measures such as clothing and sunscreen are seen as key to reducing melanoma risk. (more…)
Ultraviolet A more cancer-causing than once thought
Tuesday, October 18th, 2011
While the evidence linking sunbeds to the development of skin cancer continues to mount, recent research provides new insight into the underlying mechanisms.
Radiation from both the sun and tanning beds is made up of various wavelengths, including visible light and several types of ultraviolet (UV) radiation. Ultraviolet B (UVB) rays, those which cause sunburn, have long been heralded the culprit which initiates skin cancer. It does this by damaging the genetic information (DNA) within skin cells, forming lesions known as cyclobutane pyrimidine dimers (CPDs) and pyrimidine (6-4) pyrimidone photoproducts (6-4PPs). These lesions create mutations in the DNA which can lead to the development of skin cancer (you can read about this process here). (more…)
Children at greater risk of melanoma spreading
Tuesday, October 11th, 2011
A recent study of melanoma in children and young adults indicates that there may be greater risk of metastasis, or spread, of the cancer in younger patients. The study, conducted by researchers at Baltimore’s John Hopkins Children’s Center, involved analysis of 2008 SEER (Surveillance, Epidemiology, and End Results) data on melanoma cases from 2003 to 2008. A total of 717 children and 1368 adults, aged 20-24, were diagnosed during this time.
Investigators looked at patients who received biopsies of the sentinel lymph nodes (SLN; those nearby the initial tumour) and the number of those in whom the disease had spread to this site. It was found that, of those biopsied, children were more likely to have cancer cells which had infiltrated the removed lymph nodes (25%), indicating greater rates of metastases than in adult patients (14%). (more…)
“Solariums make a mockery of our efforts to reduce skin cancer”: Cancer Council Australia
Monday, May 16th, 2011
Cancer Council Australia has launched one of the strongest public attacks to date on the use and regulation of sunbeds in the country. This follows a report that some solarium devices emit UV radiation six times stronger than the sun at midday in Australia.
In a press release issued today, the CEO of Cancer Council Australia, Professor Ian Olver, cited a paper published in this month’s Photochemistry and Photobiology journal when calling for the Australian Government to phase out solariums. (more…)
Dear 16-year-old Me
Thursday, May 5th, 2011A great new viral video from the David Cornfield Melanoma Fund went live earlier this week. Check it out:
Head to the DCMF website for more on their work. You can read more about melanoma on our website.
How does indoor tanning cause skin cancer?
Wednesday, April 6th, 2011
Earlier today, new stats were published by Cancer Research UK highlighting that two young adult Britons are diagnosed with skin cancer every day; a rate which has tripled since the 1970s. There were several factors highlighted as contributing to this increase, but one was most clearly singled out in the release:
“using a sunbed before the age of 35 can increase your risk of melanoma by 75%”
Reports thus far: news from the AAD
Tuesday, February 8th, 2011
Tomorrow marks the final day of the American Academy of Dermatology’s 69th Annual Meeting in New Orleans. As one of the major medical conferences of the year, it is common for some fascinating advances, new statistics and unusual reports from the field to be unveiled in the many presentations made over the five days. Here is a brief sample of the highlights reported thus far.
Updated: the AAD’s position statement on vitamin D
Thursday, January 20th, 2011
Overnight the American Academy of Dermatology (AAD) has issued an update on its position statement on vitamin D, a hot topic in dermatology and medicine more broadly (and one we’ve discussed on the blog in some depth in the past).
In a release issued on their website, the AAD reaffirmed its stance that vitamin D – essential for human skeletal health – should be obtained through diet and/or dietary supplements, rather than risking exposure to ultraviolet light, a natural source of vitamin D for humans. (more…)
Australia still skin cancer world leader
Friday, December 17th, 2010
As we tweeted a little earlier today, a new report has been released showing that Australians have 13 times the likelihood of developing skin cancer compared to the global average.
The alarming statistic, taken from Cancer in Australia: an overview 2010, actually highlighted the risk of contracting melanoma, the deadliest form of skin cancer. For every 100,000 people, there are 37 cases of melanoma diagnosed in Australia, compared to 3 per 100,000 as a global average. The melanoma rate was so high that it increased the overall rate of cancer in Australia to one of the highest in the world with 314 new cancer cases per 100,000 people, compared to a global average of 182 per 100,000. (more…)
