Human Limits

My dad is a real big National Geographic junkie, and because of his bias influence, he has also gotten me slightly hooked. Today the new addtion came called "The Tallest Trees: Redwoods" and I was flipping through and saw this page titled "Human Limits" and was amazed by the
informantion:



Body Heat: When core body temp. hits 107.6%, heatstroke can't be reversed and will prove fatal.

**OUR LIMIT: 107.6%**

Cold Water: Water saps body heat. You'd last barely 30 minutes in a 40 degrees F sea. Life vests buoy you up to slow eat lose.


**OUR LIMIT: 40 DEGREES**


Hot Air: in a burning building of deep mine adults can take 10 mins. at 300degrees F. Kids soon succumb in a 120 degree F car.

High Altitude: Consciousness fades for most. With bigging lungs and more red blood cells, highland dwellers are OK.
**OUR LIMIT: 15,000feet**

Diving Deep: Without equipment, most folks black out before 2 mins, and below 60 feet. The best free diver made it to 282 ft.
**OUR LIMIT: 282 ft**

Lack of oxygen: Typically, you'd pass out within 2 mins. With training, people can hold their breath nearly 11 mins!
**OUR LIMIT: 11mins**

Blood Loss: You can survive after spilling 30 percent. At 40%, you'd need an immidiate transfusion.
**OUR LIMIT: 40%**

Starvation: Lose 30% of body weight and death is imminent, thought disease will likely kill you before you starve.
**OUR LIMIT: 45 days**

Dehydration: Every cell needs water. Replace the quart or so you lose daily, or you won't last much more than a week.
**OUR LIMIT: 7 days**

Isn't that crazy? I think it is. Humans are amazing.

Just wanted to share this with you guys,
Lauren
ps~ I'M SEVENTEEN IN 18 HOURS!! but I'm going to be gone tomorrow for a school fieldtrip.