... That said, there are rare situations where surgery may be necessary despite the toxic load of drugs and anesthetic agents, combined with the abrupt physical shock of the surgeon invading the body. (dogsnaturallymagazine.com)
It has an insulating effect to help maintain your core body temperature, protect your internal organs from physical shocks and provides fatty acids for energy on demand. (healthyeating.sfgate.com)
The undue stress placed upon these young animals often causes health problems / trauma as a result of exposure to disease, weakening of their immune system and physical shock induced by being handled and transported while their bodies are fragile and their digestive systems are still adapting from milk to solid diet (bordercollierescue.org)