Twenty-seven-year-old Aron Ralston James Franco is a mechanical engineer and thrill-seeker. He watches as his fingers turn blue and gray from insufficient blood flow ischemia. He has very little food and water, and finally, as he grows dehydrated, he drinks his own urine. How could a man stay alive for hours with his arm wedged by a rock with only a liter of water and urine to drink?
How could he then cut off his own arm with a pocket knife without fainting, going crazy with the pain or bleeding to death? When faced with certain death, primordial instincts take over, says Dr.
Physiologically, a person experiences an acute stress reaction with an outpouring of hormones. Adrenaline and noradrenaline keep the heart pumping strongly and direct blood flow to the vital organs, including the brain, liver and kidneys.
Glucagon stimulates glucose release, so that a person has more energy. With massive willpower combined with the hormonal surge, such a person could survive in some pain with only small amounts of water — no more than three days, however. Drinking urine would probably worsen dehydration because of the salts it contains called urates.
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