Authors

Rachel Mahan

Body of Evidence: Just Like Clockwork
A regular circadian rhythm keeps your body ticking.
PT Bookshelf: Going High-Tech
Book reviews on online trends, artificial intelligence, and brain circuitry.
Head 2 Head: A Co-ed Quandary
Do boys need girls in the classroom? The risks and benefits of single-sex education.
On the Job: Titan of Type
Typeface designer Matthew Carter dresses up the words you read.
End Procrastination Now
Some 20 to 25 percent of us are chronic procrastinators. Ten tips to getting on with what's important.
Botox Without Borders
Storefronts that provide medical procedures—like Botox—are not necessarily unsafe. However, the best results might come to those who ask the right questions and do their homework.
Natural Element: Seeing Red
Getting to know the most alarming shade in the rainbow.
On the Job: Hacker Hunter

An ex-convict keeps computer-users safe.

PT Recipe: Sweet Talk

Sugar gets a reprieve, sort of. Here is sweet news about sugar.