In this Lessons for Life, an inexperienced diver is forced to make an emergency ascent runs out of air—and luck.

An asthmatic diver pays the price for not recognizing his limitations.

A scuba diver ignores the signs of a medical condition and chooses to dive anyways, leaving him unconscious and out of time.

One scuba diver pays the ultimate price when he decides to leave his buddy to enter a shipwreck on his own.

A teen diver has a conservative dive profile, but shows symptoms of DCS. Despite the signs, he chooses to fly. See what went wrong.

A diver tries to recover a boat that overturned and sank in a local harbor, but without the training needed to bring the boat to the surface he loses his life.

In this installment, Eric Douglas explains what happens when you have a heart attack, and if it's safe to scuba dive after going into cardiac arrest.

One man's first night dive would be his last dive — and night — ever. Find out what went wrong and how can you avoid it happening to you.

Testing out new scuba diving gear leads to fatal mistakes for one experienced rescue diver.