Historical Examples. 1  But this is insecure ground, and the meaning can but be guessed at. 2  He realized that his tenure was insecure, and he dreaded exposure. 3  Her foot slipped from its insecure rock hold and she stumbled. 4  He left her with the feeling that the foundations70 of life, as she was leading it, were insecure.
Carbon monoxide poisoning is caused by inhaling combustion fumes. When too much carbon monoxide is in the air you're breathing, your body replaces the oxygen in your red blood cells with carbon monoxide. This prevents oxygen from reaching your tissues and organs. Various fuel-burning products and engines produce carbon monoxide.
Another very common source of carbon monoxide poisoning is from cigarette smoke. Second-hand smoke is one of the leading causes of health problems for those that are around smokers frequently. If you have a house full of smokers, the smoke can actually cause a serious amount of carbon monoxide poisoning.etting a carbon monoxide detector can help you to know if you are being subjected to the deadly gas. However, many people ignore these safety devices and are still hurt by the gas. Here are a few common causes of carbon monoxide poisoning that you can avoid with a little common sense.