Stress can contribute to myriad physical and mental ailments, increasing risks of heart disease, anxiety, depression and even Alzheimer’s disease. But is it possible to live a life free from stress? Stress expert Dr. Aditi Nerurkar says the point of life isn’t to eliminate stress altogether; it’s to relieve toxic stress. Small, lasting changes in stress management are at the heart of her debut book, “The 5 Resets: Rewire Your Brain and Body for Less Stress And More Resilience,” the January selection for Bookmarked: The Under the Radar Book Club.