How do I stop from fainting?

When I am doing parade for Australian Army Cadets and I have to stand up for 1/2 hour I start to feel faint and go from hot to cold.
1. Is there a permanent way to fix this?
2. What ways can I stop from fainting while doing parade?

Have your glucose levels checked, it's possible that your sugar is dropping. Eating something before formations may help.

drink lots of water.

Are you locking your knee's??? I can not explain exactly why.. but when you lock your knee's in place for an extended period of time. it will cause fainting....

Many a Bride.. Groom and their attendents... even a few clergy men have hit the floor for that very reason...

You may also want to check with your doctor to make sure there isn't a medical reason your fainting... it can be brought on by a mulititude of illnesses and conditions.

hope that helps...

Put some herbal Chinese oil on your whole feet it has a bit of mint smell. It's for headaches actually.
it's call ' fong you'.
It will burn your feet for a couple of hours, but it makes you alert the whole time.

you must eat something before the parade so that you have energy. And drink lots of water so that you are not dehydrated.

Drink alot of water

umm... make yourself feel cold!! drink water, put on skin balms, etc. i have seen many people faint because of the intense heat.