Are you a pessimist by nature, a "glass half empty" sort of person? That's not good for your brain.
원문출처 : https://www.cnn.com/2020/06/07/health/negative-thinking-dementia-wellness/index.html
원문출처 : https://www.cnn.com/2020/06/07/health/negative-thinking-dementia-wellness/index.html