Don't worry about it. The person doing the CAT scan and the x-rays will say "Hold still and hold your breath." These machines are sort of like a camera. If you are taking a picture of someone and they move then you are going to get a blurred image. It's important you listen to them because if not they'll have to do it all over again. It's painless and all you have to do is follow their directions.
athletes don't hold their breath during the 100m they hold their breath during the 50m race so they don't have to waste time breathing.
either bite ur tounge, or the inside of your cheek. Hold your breath until u hav to breath then breath and hold your breath, when talking frown or take deep breaths :-)
The maximum amount of time a harbor porpoise can hold its breath for is unknown. There have been observations of these marine mammals holding their breath for over 5 minutes during dives.
Hold Your Breath was created in 2008.
No lions don't hold their breath.
No but he can hold his breath for hoursNo lions don't hold their breath
They can hold there breath over 15 minutes
You can hold your breath. You are human. Humans are mammals. Bears are also mammals, which means they have lungs, and they can therefore hold their breath.
moose cant hold their breath. just kidding they can hold their breath for 8 minuets
No, as long as you stay calm then you don't have to hold your breath.
Birds hold their breath when they are drinking or diving to catch fish.
they can hold their breath 20 minutes under water