U.S. researchers about to put chemotherapy cold caps to the test

Near-freezing temperatures are supposed to reduce blood flow in the scalp, making it harder for cancer-fighting drugs to reach and harm hair follicles. Later this summer, researchers in the U.S. will begin enrolling 110 early stage breast cancer patients in a study of the DigniCap brand of scalp cooling. The tight-fitting, insulated cap is attached to a cooling machine to stay around a shivery 41 degrees as patients undergo chemo. Participants' hair will be photographed for experts to assess, and they'll be compared with a small group of similarly ill patients who get chemo alone. Read more here.