Re: Tell Me Why...??

by **toxic** 16th December 2007, 12:44 am

WHY DO MUSCLES ACHE AFTER EXERCISE?

When you exercise your muscles contract and produce an acid known as lactic acid.
This acid acts like a 'poison'.The effect of this lactic acid is to make you tired, by making muscles feel tired.
If the acid is removed from a tired muscle, it stops feeling tires and can go right to work again.

So feeling tired after muscular exercise is really the result of a kind of internal 'poisoning' that goes on in the body.
But the body needs this feeling of tiredness so that it will want to rest.
During rest the joints of the body replace the supplies of lubricants they have used up.

FACT FILE
It is important to stretch your muscles before and after exercise to distribute the lactic acid.

by **Ten** 10th December 2007, 8:07 pm

bakit nga ba??????

hahahahaha..

padaan lang..

namiz ko lang keo..

flower

by miyhamz 1st December 2007, 2:16 pm

La lng. . . .

naki-epal lng!!!!

geek

hEhehEhehehehe

by **toxic** 21st November 2007, 11:33 am

~~FACT FILES IN THE LABORATORY~~

by **Ten** 19th November 2007, 6:45 pm

WHY???

hehehehe..

by **toxic** 19th November 2007, 8:14 am

WHY IS LITMUS PAPER USED IN CHEMISTRY

Litmus paper is a quick way to test a liquid to see whether it is acid or alkaline.

Dyes called indicators show very quickly if a substance dissolved in water is acid or alkaline.
One of these dyes is litmus. If a piece of paper impregnated with litmus is dipped into a solution,
it immediately turns red if the solution is acid.
If the solution is alkaline, the litmus turns blue.

A similar dye to litmus is present in some vegetables, such as red cabbage and beetroot
and this dye changes colour in the same way during cooking.
If your tap water is hard, or alkaline, the vegetables will be coloured a deep purplish-blue.

by Sponsored content