How can one ensure survival in extreme conditions by drinking urine as a last resort?

Drinking urine as a last resort in extreme conditions can help maintain hydration temporarily, but it is not a sustainable or safe long-term solution. Urine contains waste products that can be harmful if consumed in large quantities. To ensure survival in extreme conditions, it is important to prioritize finding a clean water source, rationing water consumption, and seeking help or rescue as soon as possible.