Inert Gas Washout

DAN medics and researchers answer your questions about dive medicine.

Four divers pose underwater

COPD: Incompatible With Diving

Reduced exercise tolerance is common for those with chronic obstructive pulmonary disease and poses risks for diving. There can be strenuous activity involved with managing currents, swimming on the surface in choppy seas or pulling yourself and your heavy gear up a ladder and onto an unsteady boat. With COPD, shortness of breath during exertion doesn’t mean you are out of shape; it means you cannot rid your body of carbon dioxide and replace it with the oxygen needed to meet the demand of your exertion.

illustration of lungs

Laryngospasm and Anxiety

Q: During dive training in the pool, I couldn’t breathe after clearing my mask with my regulator in my mouth. After surfacing, I took six to eight wheezing breaths and then […]

Diving After Brain Surgery

I RECENTLY UNDERWENT BRAIN SURGERY. The surgery was successful, but now part of my skull has been replaced with mesh. My neurosurgeon is brilliant but does not know how the […]

Autism and Diving

My son is on the autism spectrum and wants to learn how to scuba dive. Will his autism be a problem? Every autistic person is unique and must be evaluated […]

disabilities and scuba

Joint Pain and Diving

Your effort to relieve joint pain involves achieving neutral buoyancy, but that requires some physical exertion.  Additionally, nr-axSpa often progresses into ankylosing spondylitis with inflammation where tendons, ligaments, or joint capsules enter the bone, which can lead to spinal fusion and reduced mobility.

having back pain

Bipolar Disorder and Diving

YOUR QUESTIONS ANSWERED about Bipolar Disorder and diving, immersion pulmonary edema, and pain in teeth when diving.