Rule of Three

Survival Tips : Things to know when it counts. These times will give you an idea of what is most important to survival and in what order.

Indeed a simplified "rule of three" gives average survival times as follows:

In acute emergency (3 seconds)

No oxygen or massive bleeding (3 minutes),

Excess heat or cold (3 hours),

No water (3 days)

No food (3 weeks).

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