Scientists are reporting the first compelling evidence in people that cognitive training can boost levels of a brain chemical that typically declines with age. A 10-week study of people 65 or older ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...

The goal of the course is for you to be able to solve the 373 problems on this list. Notice that the exercises are presented in groups enclosed in parentheses, and each group is a link. Click on the ...