[NonZeroSum]

Also, some people require refrigeration to keep life-critical medicine (e.g., insulin for diabetics).

[Caramelgal]

Also, some people require refrigeration to keep life-critical medicine (e.g., insulin for diabetics).

Good point. My dad was diabetic and had to keep his insulin refrigerated. When he traveled he took a small travel cooler with an ice pack in it. Also some liquid antibiotics (like the kind you give to babies) have to be refrigerated.