Three people died from apparent carbon monoxide poisoning at Saguaro Lake in Mesa on Jan. 18, a poison that kills hundreds annually.

Amanda and Jason Elderkin and Amanda's mother Julieanne Afman were found dead on a boat at Saguaro Lake on Jan. 18. Was it carbon monoxide poisoning?

The colder months bring higher rates of carbon monoxide poisoning, which is one of the most common causes of deadly poisoning in the nation.

Carbon monoxide (CO) is an odorless, colorless gas that kills without warning. Hundreds of people die each year and thousands of others become ill because of CO, according to the CDC.

Knowing the signs and symptoms of carbon monoxide poisoning could be life saving. The CDC says the most common symptoms of carbon monoxide poisoning are headache, dizziness, weakn

Having a carbon monoxide detector can alert you of a problem before it’s too late but it’s critical to know the symptoms since those devices can fail.

As temperatures plummet and heating systems run at full capacity, health experts are urging caution to prevent carbon monoxide (CO) poisoning.

Well below-average temperatures could increase your risk for carbon monoxide poisoning. It may be your instinct during this time of year to crank the heat or use your fireplace. However, these are only a couple of ways that you could risk releasing carbon monoxide into your home.

Amanda and Jason Elderkin and Amanda's mother Julieanne Afman were found dead on a boat at Saguaro Lake on Jan. 18. Was it carbon monoxide poisoning?