Daily aspirin | Tumor mutations | Exercise and Alzheimer’s disease

September 25, 2018 Edition Daily aspirin shows no benefit for healthy older adults A large clinical trial found that a daily low-dose aspirin doesn’t have the same benefits for healthy older adults as it does for those who’ve had a heart attack or stroke. Most tumors in body share important mutations Primary and metastatic tumors within an individual all likely rely on the same mutations to grow and spread, suggesting that precision treatments could be chosen based on a single sample. Exercise and new nerve cell growth in Alzheimer’s disease In a mouse model of Alzheimer’s disease, access to exercise stimulated the growth of new nerve cells in the brain and reduced memory problems. The findings pave the way for studies in people. Popular Stories Fasting increases health and lifespan in male mice Early family experience affects later romantic relationships Epstein-Barr virus and autoimmune diseases Predicting response to immunotherapy Learning about fatal opioid overdoses changes prescribing behavior