Divers should only share air in emergencies. One pair learned this lesson the hard way when they made the mistake of planning their entire dives on shared air—and running out.

It might seem basic, but this crucial skill helps ensure that your dives begin and end without injury. Here's how to master the act like a pro.

An inexperienced diver on a surface-supplied air dive let distractions interfere with safety precautions, leading to chest pains later that day. Here's what happened—and how to treat it.

The last thing any diver wants is for anything come between them and their next dive—especially an illness.

What happens when you experience rapidly progressing symptoms and you're on a liveaboard? Here's how a quick-reacting crew helped one diver seek treatment.

As diving technology advances over the years, one thing remains constant: the importance of understanding and managing your air consumption.

Not every dive can be in pristine conditions, but there are limits, and you have to know when to say no—especially amid a weather advisory.