During a disaster, one of the most significant problems you’re likely to face is the lack of clean drinking water. People living in highly congested urban areas are especially vulnerable, since municipal water supplies can be contaminated or may stop flowing altogether.
Once the last-minute panic starts, it’s only a few short hours before the shelves of many local grocers, convenience stores, and even big-box retailers are completely stripped of all emergency supplies.
I’ve gone for several days without eating in the bush and when you finally get the chance to eat, your stomach has changed. Just about anything you put in it, especially raw meat, causes it to react in strange ways, and you may end up spending a few uncomfortable hours until the digestive process catches up.