Games like chess, cross word puzzles, sodoku, etc exercise the brain. Mental exercise like physical exercise promote good health but is no guarantee you'll never get sick. But they will keep you healthier than doing nothing.
Moderate exercise: Can reduce inflammation and improve immune function. Moderate exercise can include yoga, swimming, and resistance training.
High-intensity exercise: Can increase inflammation and impair immune function, especially if it's prolonged.
Heavy weight training and CrossFit: Can cause inflammation if not performed properly.
How does playing chess develop/preserve cognitive abilities in adults? I've read on its abilities relating to Alzheimer and Dementia, but how exactly does it effect aging individuals who don't suffer from these diseases? Improved memory? Processing speed? IQ?