Get a Little “Health” from Your Friends
Research shows that regular social activity promotes creation of new brain cells and supports brain repair. The "use it or lose it" theory of healthy aging suggests that the mental workout associated with social engagement could help to maintain your mind and memory, as well as help promote a healthy heart rate.
Instead of texting your friend back, ring her up and have a conversation instead. You’ll get to flex your mental skills including attention, listening, reasoning, language, and memory.