By Dr. Brian McDonough, Medical Editor

PHILADELPHIA (CBS) - Most people have a vague idea that sleep apnea is a sleep disorder, and many know it’s linked with snoring, but that is all many people understand.

Sleep apnea is a problem with sleep where a person with the condition struggles to move air efficiently through the body in the evening. Recent studies have linked sleep apnea to elevations in blood pressure as well as cardiovascular issues.

Ask yourself or your partner these key questions. Do you snore? Are you overweight? Does your snoring bother other people? Are you tired after sleeping? Are you tired during the day? Have you ever fallen asleep while driving?

If the answers are yes to some or all of these questions, it is worth talking to your doctor.