A new diver commits a cardinal sin: ignoring ear pain during descent. Divers should equalize early and often and never brush off ear pain.

Just as you must equalize the pressure in your sinuses and middle ears, you must also equalize the pressure in your mask as you descend.

Diving with asthma has its own risks, but it’s not impossible. Speak with a dive doctor and consider these tips.

A technical diver cannot be resuscitated after he rejects alternate air sources to address a free-flowing regulator.

ASK DAN: What Do I Need to Know About Decongestants and Diving?

A diver decides breathing pure oxygen is all she needs to address DCS symptoms, impeading proper treatment.

Some of the world’s best dive sites are only accessible by boat, but unfortunately, seasickness prevents some divers from visiting them.