Causes of Fluctuating Body Temperature. Naturally, your body changes its temperature to comply with the changes in your surroundings, which has been experienced by everyone. Your body will lose heat when the temperature of your surroundings is on the higher side.n the other hand, your body will try to keep it warm when the temperature in your surroundings is low. Your body completes the task by making your blood vessels to send blood from small capillaries to the warm parts of the body, which in turn signals your muscles to shiver.
Donât Skip a Step. 1  A child who has outgrown the internal harness or height limitations of a forward-facing child safety seat. 2  Within the range of 40 to 80 pounds but under 4â9â. Within 4 to 8 years of age and is at least 35â tall.
Booster seats are for children who are four to eight years old, who weigh 40 to 80 pounds, and who are less than four feet, nine inches in height. You can use a booster seat until an adult seat belt correctly fits the child without use of the booster seat.hese examples can help you to select the correct child safety seat: Infant seats are normally for infants that weigh approximately 22 pounds or less, are 25 inches or less in length, or are less than one year old. Face the infant seat toward the back of the vehicle.