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.
Causes of heat stress. There are many factors which can cause heat stress and heat-related illness, including: Dehydration â to keep healthy, our body temperature needs to stay around 37Â°C. The body cools itself by sweating, which normally accounts for 70 to 80 per cent of the bodyâs heat loss.