Saturday, April 15, 2006

you know when you're at work..
and d workload u have just seems so annoyingly alot..
and you just want to be away from the computer and have fun?
well receiving workloads havent been much easier..

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anyway here's some stuff bout ur bizarre bodily functions....

What are pins and needles?
Everyone has experienced that sharp tingling sensation in the toes, legs or fingers at some time or another. Pins and needles, or parasthesia, as they are known, generally come about due to pressure on a nerve that is close to the skin surface. Common pins and needles 'hot spots' include the elbow, when the 'funny bone' nerve is subjected to pressure, and the calf or foot from pressure on the nerve below the knee. In the same way, when, for example, we stand up after sitting in a particular position for a long time and our legs appear to have 'gone to sleep', this is the result of a nerve being compressed and then bouncing back into shape.

Why do your body jerk when you're falling asleep?
Ever been just about to drift off into a blissfully deep sleep when suddenly you feel like you are falling, and your body jerks in shock? What you have experienced is called a 'hypnic jerk'. This often occurs during very light sleep, when your body temperature drops - your heart slows down and your conscious brain gradually relinquishes control of your muscles. The general consensus is that this brain activity can make your larger muscles contract, and that, as your body twitches, another part of your brain invents a 'mini-dream' in which you are falling off a cliff, for example. So, next time you wake up with a 'sleep start', just remember it's simply your body's way of telling your muscles to chill.

FM channel: orbiting across galaxy

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