In This Issue

Your Energy: What’s Happening to Your Food?

Genetic engineering is coming to dinner.

Your Body: Masses of Muscles

You can’t make a move without your muscles.

Your Choices: Juiced

Abusing steroids is a sure way to lose.

Your Relationships: Online Friendships

How does your Web life mesh with your real one?

Your Mind: The ABCs of OCD

Obsessive-compulsive disorder’s ups and downs

Your World: Too Hot to Handle

Global warming hurts everyone’s health.