Answer:when you cough blood leaves your heart.
Explanation: I saw a video and when some one coughed blood came out of the heart.
Answer:
go to a hospital
Explanation:
Check with your local pediatric doctor to see what they tell you to do
I feel like this question is very troll but my guess is for less weight to hold them down....
B) Brain...spinal cord, for some reason I keep ending up on questions you've asked.
C. By overstimulating the “reward circuit” of the brain