Today’s Headlines: Dermatologists Say Popular Sunscreens Are Not Effective, the Way to Slow Down Bone Loss, and Why Certain Foods May Be to Blame For Health Issues

Certain sunscreens are ineffective, despite their reviews and reputation. Dermatologists tested 65 best-selling sunscreens, the top 1% of all sunscreen purchases on to see how beneficial they really were. “40% of them did not meet the criteria put forth by the American Academy of Dermatology. Of these 65 sunscreens [that were tested], seven (or 11%) did not have an SPF of at least 30, five (or 8%) did not protect against both UVA and UVB rays, and 25 (or 38%) were not designed to withstand water or sweat.” Products in the study did not meet standards if they could be easily washed away. The American Academy of Dermatologists urged consumers to pay attention to the three most important factors when choosing sunscreen: SPF 30 or higher, broad spectrum protection, and water resistance. (LA Times)

Exercising multiple times a week may help strengthen your bones. As women get older, their bones get weaker but a new study has found that regular, light exercise may be the key to good bone health. “[The study]  found that women who exercised consistently every week experienced bone loss, but the reduction was significantly less than a control group that didn’t exercise regularly. In regular exercisers, bone density decreased by 1.5% in the spine and 5.7% in the hip over 16 years. Among controls, bone density in the spine and hips declined by 5.8% and 9.7%, respectively.” The study found that exercising twice a week was necessary and any less would be ineffective. (WSJ)

Eating too much government-subsidized food may lead to adverse health effects. The CDC studied foods like wheat, rice, dairy, and other affordable but typically processed foods. “Even though these are not the foods the government tells us to eat with their dietary guidelines, they’re the foods the government makes cheap. More than half of Americans’ calories came from subsidized foods, the study authors found. In the research group’s prior work, this hasn’t proven to be a good thing; diets full of subsidized food were rich in dairy, carbohydrates and meat and low in fruits, vegetables and overall quality. Younger, poorer, less educated people eat vastly more quantities of subsidized food, the same group of researchers found. Compared to people who ate the least amount of subsidized food, the people who ate the most had a 37% higher risk of being obese, a 41% greater risk of having belly fat, a 34% higher risk for having signs of elevated inflammation and a 14% higher risk of having abnormal cholesterol.” Researchers suggested government subsidies be adjusted to encourage more fruit and vegetable production. (Time)