41.   Your brain will be working overtime.

42.   Your brain will be working better tomorrow.

43.   You can perform a couple of simple experiments to discover how your own brain works.

44.   Except for Paul, the Serenos all explore aspects of how the brain works, either in relation to vision, language, memory or other cognitive processes.

45.   How does the brain work?

46.   Scientists who thought they were testing sheep brains were actually working with tissue from cattle, the government said.

47.   The tests do not, however, measure how the brain works after being exposed to the chemical, he said.

48.   The work has been crucial for understanding how the brain works and how diseases can arise when the system goes wrong.

49.   These discoveries have been crucial for understanding how the brain normally works.