Ask Dr. Universe

Dear Editors,

Thanks for your interest in publishing Ask Dr. Universe, a weekly science column for kids from Washington State University’s resident cat-scientist. Dr. Universe looks forward to answering questions from your curious readers.

Thank you,

Rachel Webber

Ask Dr. Universe

rcwebber@wsu.edu

Dear Dr. Universe,

Do children’s brains work better in the morning or in the afternoon?

Grace

Spring, Texas

Dear Grace,

Hang on tight because the human brain keeps you on a 24-hour roller coaster.

Every day the human body produces a chemical messenger in the brain called melatonin. It tells the body...