By now, you might be aware that a sedentary lifestyle and poor diet can hurt brain function and memory. But there is more to brain health than eating well and being active. There are several lifestyle habits that may be chipping away at brain health and accelerating cognitive decline. However, the good news is that changing just one habit has the potential to change how your brain works to help you age better. It’s also never too late to start. Here are four habits that could be deteriorating your memory and thinking ability: Dwelling on the Negative: Holding onto grudges, resentment, and ruminating on negative thoughts won’t just put you in a bad mood; it is also associated with cognitive decline and memory loss in people 55 and older. One study, in the journal Alzheimer’s and Dementia, found that people who dwelled on negative thoughts had more amyloid and tau deposits …