Night Drifters
Recent studies have shown larval fishes to be strong swimmers with sophisticated instincts for remaining in local waters. But exactly where they go between spawning and settlement remains a mystery.
Alert Diver Issue: Q1 2017
Head Injuries and Diving
If you have a history of head injuries, it may impact your ability to dive. Our experts answer questions pertaining to head injuries.
Invisible Crystals
Polymorphic crystallization inside hoses has recently emerged as a hazard divers should be aware of. Be sure to replace old hoses, limit hoses’ exposure to high temperatures, and follow manufacturers’ maintenance recommendations.
Asking the Right Questions
Ingrid Eftedal, Ph.D., studies the genetic and molecular mechanisms involved in the body’s responses to diving. Eftedal’s diverse background includes work in molecular biology, forensic genetics, civil engineering, biophysics and medical technology.
Dutch Springs
Pennsylvania is not known as a premier dive destination, but on the east side of the state is a gem for divers. Dutch Springs is an old quarry-turned-lake and was made into a scuba diving facility.
No Sit-Ups, No Problem
Admit it: You hate performing sit-ups. (We all do.) But there are other ways to engage your core muscles and strengthen the area. Here are some great core exercises that provide strength and work other muscle groups.
DAN Member Profile: Deano Cook
Tattoo artist Deano Cook is also an accomplished painter and underwater photographer. The DAN member discusses how he got into scuba diving and what he enjoys about the sport.
A Rude Awakening
Although training emphasizes the theoretical aspects of safe freediving, sometimes it takes real-world experience to really make it sink in. Freediving is risky so it is always important to have your skills sharp.
Studying Deep Reefs and Deep Divers
Papahānaumokuākea Marine National Monument (PMNM) in the Northwestern Hawaiian Islands is the largest marine conservation area in the United States and one of the largest in the world. Studying the biodiversity of the Hawaiian archipelago using scuba has given scientists a unique opportunity to monitor the physiological impacts of deep dives and thus expand our knowledge of diving science, particularly decompression risk.
Member to Member: Giving Back
An ophthalmologist set up a team to perform eye surgeries in Grenada as a way to give back to the local community. More than 100 children received eye exams.
