A chemical found in most antibacterial soaps may be fighting off germs at the cost of causing liver damage. There have been question marks around triclosan for some time—the FDA warned last year that antibacterial soap could be harmful, and Minnesota banned the ingredient this year—but new research finds it could be a lot more dangerous than thought, the Atlantic reports.
Dermatologists tout sunscreen for its ability to prevent signs of aging and protect against skin cancer. But now, new research suggests a measurable benefit of slathering on sunblock with as little as SPF30: a reduced risk of melanoma.
“Sunscreens are known to prevent skin from burning when exposed to UV sunlight, which is a major risk factor for melanoma. However, it has not been possible to test whether sunscreens prevent melanoma, because these are generally manufactured as cosmetics and tested in human volunteers or synthetic skin models,” principal investigator Christin Burd, assistant professor of molecular genetics at The Ohio State University, said in a news release. “We have developed a mouse model that allows us to test the ability of a sunscreen to not only prevent burns but also to prevent melanoma.”
Thyroid cancer appears to be on the rise in many areas of the world, although recent research suggests this may be more due to
over-diagnosis than an actual increase in incidence.
In the US, the rate of thyroid cancer has doubled since 1994.1 In South Korea, it has become the most commonly diagnosed type of cancer, having increased 15-fold in the past 20 years.
More than a third of adults in Western countries have been exposed to indoor tanning at some point, according to an analysis of past research.
Based on those exposures, the study authors calculate the number of skin cancers that can be blamed on indoor tanning each year exceeds the number of lung cancers attributed to smoking for the countries studied.
“What we knew is that indoor tanning is linked to skin cancer,” Dr. Eleni Linos said. “What we wanted to find out is how common is exposure in the United States and internationally.”
Heavy use of mouthwashes may lead to a higher risk of oral cancer, an expert claims. Research suggests that people rinsing with such products more than three times a day have a greater chance of developing mouth and throat cancer.
Dr David Conway, a senior lecturer at the University of Glasgow Dental School, said people should not routinely use a mouthwash and stick to brushing and flossing instead.
A group of environmental scientists issued a warning Friday about commonly used chemicals known as PFASs.
The chemicals, which go by the longer names of polyfluoroalkyl and perfluoroalkyl, are found in everything from pizza boxes to carpet treatments, reports the New York Times.
“If you got a pastry with your coffee this morning, a PFAS substance probably even lined the waxy paper it was served on,” writes Lynne Peeples at the Huffington Post. (In the case of the pizza boxes, the chemicals help prevent the boxes from getting soaked by grease.)
A new study published in Science presents evidence that perhaps some of the apparently extravagant ideas about vitamin C were not completely off base. The study in question examined human colorectal cancers containing specific genetic mutations that are found in up to half of these cancers. These cells ended up drawing in so much vitamin C that it caused their death.
Some half a million cases of cancer a year are due to people being overweight or obese, and the problem is particularly acute in North America, the World Health Organization’s cancer research agency said on Wednesday.
“The number of cancers linked to obesity and overweight is expected to rise globally along with economic development,” said Christopher Wild, IARC’s director.
Electronic cigarettes were found to contain one million times more cancer-causing substances than outdoor air in a study by Baptist University.
Researchers also discovered a type of flame retardant that affected the reproductive system and could lead to cancer – the first such discovery in e-cigarettes.