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What is "oxygen ear"?Answer from DAN experts:Also known as middle-ear oxygen absorption syndrome, oxygen ear describes a gas volume imbalance in the middle ear after...

I would like to know if deep stops are always recommended for recreational dives, if the depth of the deep stop must be half of...

I’ve been practicing weight lifting for several years. Three years ago I approached the world of diving, and I understood the importance of aerobic training....

When I am not wearing a hood, I have no problems equalising my ears. On the other hand, when I wear it, I always have...

What possible impact does soaking in a jacuzzi (hot water with massaging jets) have on off-gassing and DCS? I see a lot of people going...

I’m 20 years old and will be having four wisdom teeth (third molars) removed soon. I understand I’ll have air pockets where my teeth were,...

I am 79 years old and healthy. I have not been diving in several years and would like to get back into it. Are there...

I heard that the use of EANx (Nitrox) could stimulate the growth of cancer cells. Is that true?Answer from DAN experts: There is absolutely no evidence...

ls there any reason cold water might increase the likelihood of lung squeeze while freediving? I have experienced lung squeeze a few times, but only...

I'm trying to quit smoking and I would like to know: are there any contraindications to diving when taking Champix? Answer from DAN experts: This medication acts...