No amount of eagerness to dive should ever make you skip any pre-dive safety checks. Here's what happened to one diver who learned that lesson the hard way.
No. 10 in our dive-medicine series, "Ask DAN": Heart Issues & Cardio Medications. For more information on scuba diving health, medicine and fitness, visit scubadiving.com
Make sure you're properly trained in drysuit diving and understand its features — and make sure you understand the risks involved in diving in very cold water.