Because u sleep on it, Einstein.
The blood carries oxygen and nutriens throughout your body. In your case you had to hold your arm in wierd position and the blood couldn't flow into your arm what made your arm turn red/purple and go numb.
If you burnt yourself on your wristand your arm is numb you should probably go see a medical specialist.
Cutting off bloodflow or pressure on the nerve in your arm can cause it to "fall asleep" or go numb, as you've described.
I am suffering from the same problem but also I feel pain in my bones...it is like my left arm is asleep all the time. I went to the doctor and got an MRI yesterday...it looks like one of my vertebras in my neck is pinching some nerves and the doctor will now give me an injection (epidural). I hope it works.
Your left arm.
It's not supposed to be. If it stays numb then you will need to go to the doctor.
This sounds like a nerve problem. You should see a doctor in case the nerve has to be freed. The longer you leave it, the greater the chance of more serious complications.
my heart acts up and the left side of my neck tightens and my head go numb
If the SAME arm & hand go numb every time you turn your head in the same direction, You need medical evaluation to include an MRI, EMG's (electric studies of your arm) and through physical examination... You could have a nerve being pinched in your neck --at the worst...
You may feel weakness, heaviness and tingling in a limb if you have some nerve impingement. Muscle weakness may do this as well. See a doctor if this does not go away soon.
my buddy had a similar problem if he would take it the night before next morning his toes would go numb
Could be a few things. The most common reason for a limb falling asleep is that you positioned the limb funny and compressed a nerve in that limb against something, causing the limb to "fall asleep." If that was not the source sometimes injuries to nerves will cause the same effect.