Being physically fit can be important, and sometimes crucial, for dive safety. Physical fitness plays a role in both regular dive activities and emergent events. A quick and effective response to sudden demands can often quickly and easily resolve a situation, while an insufficient response can prolong or exacerbate it.
Like many octopuses, the female greater blue-ringed octopus (Hapalochlaena lunulata) is a semelparous animal, which means she reproduces once and then dies. After she lays a clutch of eggs, she quits eating and wastes away while protecting her eggs, dying shortly after her eggs hatch.
Whether for recreation, research, or commercial work, diving puts humans in a fundamentally hazardous environment. Visibility, pressure effects, and sound distortion limit communication between divers and surface teams, making real-time coordination difficult. Response time is critical in emergencies, and delays can be dangerous.
Coral reefs are facing many environmental challenges, and cruise ships are a major contributor. One of these ships’ greatest impacts is starting to muddy the water.
Think about the first time you picked up an underwater camera — what was the initial reason? Maybe you wanted a way to record your dives or a mechanism to show your nondiver friends and family the beauty of the underwater world.
The sea enthralled lmran Ahmad from a very early age. Growing up in Singapore, young lmran never missed an opportuniry to go fishing with his father, a police officer, on their boat off the coast.
Q: I was recently diagnosed with type 1 diabetes and will now require insulin. Will I be able to dive again?
The automated external defibrillator (AED) was developed as a portable medical device and released for public use in the 1960s. The operation of AEDs has gotten simpler over the years, and the devices are now widely available for use by lay providers with basic training.
DAN reached a significant milestone in the accredited DAN–UHMS Continuing Medical Education (CME) program in May 2024: the debut of a two-week, dual-course format.
I woke up excited for a routine day of diving at my local quarry. While the dive was not in idyllic tropical and clear conditions, I was getting to blow bubbles, which was enough for me.
