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3 stages of frostbite. Early stage aka frostnip is when you experience pins and needles, throbbing, aching in the affected area. Intermediate stage aka superficial frostbite where prolonged exposure causes tissue damage. Advanced stage aka deep frostbite where damage may be down to the bone.
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The small intestine is made up of 3 segments: the duodenum, jejunum and ileum. The duodenum take in semi-digested food from your stomach continuing digestion. The jejunum is the middle section where food is carried through towards the ileum where most nutrients are absorbed into the bloodstream.
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