Because your blood is not receiving oxygen, and the hemoglobin in your red blood cells is losing its usual bright red color. (Many people cannot hold their breath long enough for their faces to turn blue)
Your face would turn purple when you are suffercating(choking,can not breath,lost of breath,or when oxygen is not travilling through your mouth into the respitory system).
If you went without air for a few minutes you would probably turn a dark red. Then you would turn a blue. After that you would turn purple. If you could hold you breath that long and not pass out before you hit the blue mark.
yes, if a person cant breath for a longer time the lungs turn blue in case of recent breathing problem it cant happen.i dont know much about it
If light on manual turns to amber, push button twice, then hold breath lightly until face turns blue.
"smerfs" do not exist, however smurfs would turn pruple or a deeper shade of blue "smerfs" do not exist, howeversmurfs would turn pruple or a deeper shade of blue
give medicine
Blue and yellow are both primary colours. You would obtain blue and yellow pigments from chemicals or minerals. Examples include cobalt (blue) or ochre (yellow). Mixing blue and yellow makes green.
Yes, but only if they hold their breath underwater for 5 minutes and keep thinking "I am an idiot"
Yes it is
.No not really.
double tap the button, it would turn blue
You cant..........sorry