In the stomach, food tends to hang around for a little longer and this depends on a variety of factors including the amount of food you have consumed, how much fat it contains, and also the acidity of the stomach. However, all food should have left the stomach within 2 to 4 hours.
Many factors can affect body temperature. Illness, Disease and Trauma. Fever can be caused by infection or illness; this is the bodyâs way of fighting the infection. Certain diseases, such as arthritis, hyperthyroidism and leukemia may also cause elevated body temperature.
Here's some more information about your body temperature and what factors affect it. Normal Body Temperature. A body temperature of 98.6 degrees F is considered to be normal. Most people have a normal body temperature of between 97.6 and 99.6 degrees F when the temperature is measured orally. Measuring the body temperature rectally often produces a slightly higher reading. Measuring under the armpit may produce a somewhat lower reading.