It is unclear when the expression Christmas tree bill was coined and by whom, but in 1956 Time Magazine published an article entitled The Christmas Tree Bill. The story was about a farm bill to which more than one hundred amendments were introduced.
In response to an infection, illness, or some other cause, the hypothalamus may reset the body to a higher temperature. Although the most common causes of fever are common infections such as colds and gastroenteritis, other causes include: Infections of the ear, lung, skin, throat, bladder, or kidney.
Chills are caused by rapid contraction and relaxation of the muscles to increase body temperature. A fever can help to kill infectious pathogens or prevent their spread because most pathogens that cause infection survive best at a normal body temperature.