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Last week I got a saltwater aquarium with an anemone and a small lionfish. I saw the lionfish swimming through the anemone and thought it...

I understand that feeling tired after a dive may be a symptom of decompression sickness, but I almost always feel tired after diving. Should I...

I made two dives about a month ago. The first was to 27 meters for 20 minutes, and the second was to 11 meters for...

I underwent a tympanoplasty (repair of ear drum perforation) and mastoidectomy (removal of infection from the bone behind the ear) surgery 4 weeks ago. When...

I have been diving for 15 years without problems, but on my last couple of trips I experienced pain in my upper left abdomen under...

When trying to provide rescue breaths in the water to an injured diver, why can’t I use my spare regulator’s purge button? That seems easier...

I've recently been diagnosed with Raynaud's Syndrome. I'm an avid diver. Can I continue diving?Answer from DAN experts: Raynaud's Syndrome decreases effective blood flow to the...