evidence: Did you know that sleeping with a slice of onion on your feet may help with fevers, colds and even the flu? [...] But why the feet? There is a vast amount of nerve endings in the soles of the feet, which serve as pathways to vital organs. According to traditional medicine, these connection points are called meridians. They act as a powerful electrical circuit that, when stimulated, provides access to the rest of the body. Because of this, it is believed that, by sleeping with onions on the soles of your feet, you can transfer all the beneficial properties of the onions to the rest of the body. It is believed that by doing so, the onion slices can open the meridians located on the bottom of each foot, and draw out toxins, bacteria and sickness. And, as mentioned before, it can purify the blood and even help reduce foot odour. By placing onions on your feet, you can: