Immune system kills spontaneous blood cancer cells every day: “A new study from Australia suggests B cells, a type of white blood cell, undergo spontaneous changes that could lead to cancer if the immune system does not carry out regular checks and kill them before they form tumors.” These potentially cancerous mutations occur as part of B cells’ normal function, and if not caught can go on to become B cell lymphomas. Another type of immune cell, T cells, regularly search for and help eliminate cancerous and pre-cancerous cells. The researchers “suggest the discovery offers the prospect of an early-warning test that could find patients at higher risk for developing B cell lymphomas” or lead to new preventative treatments. 

FDA checking into testosterone safety: “The Food and Drug Administration says it will check into the safety of testosterone-boosting products after the latest report confirming that supplementing the male hormone can double heart attack risk.” An increased cardiovascular risk in men taking testosterone supplements was reported by two recent studies. Though testosterone is FDA-approved only for men who have a medical condition that leads to low or absent testosterone, it is frequently “promoted for non-medical reasons including sleepiness after dinner and lower libido.” However, the FDA also stated that men currently taking prescribed testosterone shouldn’t stop taking it without first talking to their doctors.