Health is something we take for granted until we lose it. In our youth, we may enjoy an abundance of good health, but by our 40’s an accumulation of life’s stresses begins to take their toll on our health. Fortunately, you can improve your health in your 40s and beyond by following a few simple healthy habits like improving the quality of our sleep, eating a healthy diet, getting enough exercise, developing a more positive attitude, and learning how to manage our stress.  1. Get enough high-quality sleep.  If you are not getting enough sleep, it could be due to the environment or health challenges.   If you sleep in a bright environment, perhaps because of all the electronic screens…