Notes on the physiological limits of the human body, including temperature extremes, survival durations, and environmental challenges.
Handwritten notes on lined paper titled "Limits of the Human Body," listing various physiological limits such as body heat (107.6°F), cold water (40°F), hot air (300°F), high altitude (25,000 ft), starvation (45 days), diving depth (262 ft), lack of oxygen (11 minutes), blood loss (10%), and dehydration (7 days).