Time frolicking outdoors in the sun is as an integral part of summer. However, sunlight contains ultraviolet (UV) rays that promote skin damage and aging, and increase the risk of skin cancer. The Skin Cancer Foundation warns that sunscreen is critical during time outdoors, regardless of skin type. While new FDA sunscreen regulations promise to provide consumers with more accurate information about the degree of protection their sunscreen is providing, the CDC warns that sunscreen is only one part of the protective equation, and recommends protective clothing and judicious use of shade during intense sunlight hours.
While the link between cell phone use and brain tumors has not been scientifically established — in fact, a recent U.K. Health Protection Agency group review of the scientific literature concluded that there’s no convincing evidence that cell phones cause cancer — concerns about overexposure of brain cells to radiofrequency waves (RF) from cell phone antennae continue to circulate. While there may not be a well-established link between cell phone use and cancer or tumors, there’s nevertheless evidence that cell phone use alters brain cell metabolism (the rate at which brain cells burn sugar for energy) . The significance of this finding is currently unknown, which makes some cell users nervous.
A company called Tawkon (pronounced “talk on”) has developed an app for the Android phone that can predict — not detect, since phones don’t have the ability to detect radiation — when a phone is most likely to be emitting high levels of RF on the basis of internal measurements, such as how strong the cell signal is.