The answer is 9 months or 280 days, or 40 weeks, from the first day of the woman's last menstrual period.
1. Food and Drug Administration
Most young children//infants are put into a daycare facility. Being put into a daycare exposes them to pathogens from other children.
The cells would become energy starved leading to ischemia and then infarction. This is if one was unable to do anything else to maintain the homeostasis.
You body however is able to utilize several mechabisms, primarily the use of fats and in extreme cases muscle tissue for the use of energy and ATP production through anaerobic metabolisis.