7

  Ovarian cancer Currently, there is no good early detection tool for ovarian cancer. However, BRCA testing may help you decide whether or not to get preventive surgery. If you did BRCA testing, “you might agree that you need to remove those ovaries and the fallopian tubes to get rid of that risk before cancer develops,” Garber says. Why You Might Not Get Tested There are many benefits to getting tested, but why might people choose not to get tested for the BRCA gene mutation? “Some people are worried about discrimination,” Garber says, adding that people may worry that an employer may not give them a job because they'll be as ill. “Genetic discrimination is a real thing.” However, there are laws to protect against this. The Genetic Information Nondiscrimination Act, or GINA, was signed into law in 2008. The GINA law protects individuals against discrimination in health coverage and employment based on their genetic information. Garber says that others are afraid that they’ll be v...

  Here we see a river with rocky slopes and a grassy slope in the background. The scientists focused on 575 artifacts made of obsidian at a site known as Simbiro III in Melka Kunture. These ancient tools came from a layer of sand dubbed Level C, which fossil and geological data suggest is more than 1.2 million years old. These obsidian artifacts included more than 30 hand axes, or teardrop-shaped stone tools, averaging about 4.5 inches (11.5 centimeters) long and 0.7 pounds (0.3 kilograms). Ancient humans and other hominins may have used them for chopping , scraping, butchering and digging. Story continues Obsidian proved far more rare at Simbiro III before and after Level C, and scarce in other Melka Kunture sites. The new excavations also revealed that Level C experienced seasonal flooding, with a meandering river likely depositing obsidian rocks at the site during this time of Level C. Obsidian axes from this level were far more regular in shape and size, which suggests mastery ...