We remain sharper. Learning new expertise improves myelin2 within our brains, and that is the white subject answerable for mental velocity and energy. He also endorses a caffeine-nap hack—consume a cup of espresso, then consider an influence nap for 25 minutes (the amount of time it takes to kick in); https://lukasgouzf.isblog.net/what-does-read-more-mean-56557505