Know for sure, know it fast. Here's how to tell. Other questions covered: Fire coral burn: Long-term effects? Keeping kids warm in cold water, Can a fracture preclude diving? Can I dive with DVT? Can an unnecessary chamber treatment be harmful?

Memorize these rules so you'll know when it's safe to board the flight home. Other questions covered: Can diving cause dental problems? My ulcer has flared up--Can I dive? Is it OK to free dive after a scuba dive?

Plus answers to your questions about heart conditions and ear pains. Other questions covered: Did Decompression Sickness Cause My Exhaustion? Can DCS Cause Strokes? Can a Person Recover from Paralysis Caused by DCS?

Cough, cough. Plus: advice for divers with allergies and balance disorders.

Photo by Dave Fleetham Location: Sea of Cortez on board SOLMAR V Dive Site: Gordo Banks The second shot was ...

A complete guide to diving Europe's Caribbean.

Most divers are never taught proper deco technique in traditional diving courses. The key to responsible decompression dives is planning and preparing for the things that can go wrong.

You're a good diver. You could be better. We've got 101 tips that will you safer underwater.

Thinking about participating in Florida's mini season for hunting lobsters? Prepare yourself with these expert tips on finding, catching and cooking lobsters — or go home hungry.