Please choose the correct ending to complete the given sentence: Health: [header] How to treat severe hypothermia [title] Be on the offensive side of the ball. [step] This means to try to prevent the factors that lead up to hypothermia in the first place. Wear hats and gloves; bundle up warmly.

Ending1: Pay attention to the weather; when the weatherman speaks of the wind chill factor, know that this is a serious factor that contributes to more cases of hypothermia than any other. [title] Stay dry when outside in the cold. Ending2: Harm more to yourself if you are in contact with these substances when not operating machinery, using a body-load, or removing parts from engines or transmission areas of motor power. The more chilled you are the more serious the harm will be. Ending3: Also consider covering others, such as blankets, jackets, or even hoods. The key is to avoid stimulating the physical and psychological area of the body. Ending4: If you feel comfortable in broad coverings, such as a long sleeve shirt, dress pants and sweat pants, then try wearing them. If you are unsure what to cover, put on a big, insulated sweatshirt and familiarize yourself with the hazard so that you aren't the victim of an unknown or unforeseeable threat to yourself or others.

Answer format: ending1/ending2/ending3/ending4