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Learn more from the Rodale.com news archive:

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Is That Scan Really Necessary?

What you can do: Before undergoing any scan, ask your doctor why he or she has ordered it—and if he or she stands to gain financially from the scan.

The New Mammogram Guidelines: What You Should Know

What you can do: Educate yourself about both sides of the controversy—there's time—and then consider your options in consultation with your doctor.

Will Airport Body Scans Put Your Health at Risk?

What you can do: Although the radiation levels scans emit are considered extremely low, if you still feel uncomfortable, know that you have the right to other search methods.

Airport Body Scans Trigger Travel Angst

What you can do: Most passengers will not be asked to partake in additional screening; if you're concerned about radiation exposure, opt for a pat down.

Are Our Kids Getting Too Much Medical Radiation?

What you can do: Ask the right questions, and keep a wallet card that lists your child's medical imaging procedures.

5 Questions to Ask Your Dentist about Radiation

What you can do: Find a dentist who uses fast film and thyroid collars, and ask questions about the why and when of your next dental X-ray.

Why Radiation from Japan Shouldn't Worry You

What you can do: Help the Japanese cope with the disaster; don't buy potassium iodide pills or fret over radiation in food supplies here.

Risk of Radiation in Food Isn't Getting Enough Attention, Consumer Group Says

What you can do: Eat local, and donate to charity; the Japanese people need our help.

Radiation from Full-Body Scanners Minimal, Study Says

What you can do: If you can't avoid the full-body scanners, pay more attention to radiation sources that could be more dangerous to your health.

The Sperm-Killer Sitting On Your Lap

What you can do: