The average annual salary for head coaches at major colleges (not including four schools that moved up to the Football Bowl Subdivision this season) is $1.64 million, up nearly 12% over last season â and more than 70% since 2006, when USA TODAY Sports began tracking coaches' compensation.
A stroke occurs if the flow of oxygen-rich blood to a portion of the brain is blocked. Without oxygen, brain cells start to die after a few minutes. Sudden bleeding in the brain also can cause a stroke if it damages brain cells.
Here are some interesting pieces of information about the brain: 1  The brain is always working, even while you sleep. 2  Your brain can go without oxygen for 3-5 minutes before injury will occur. 3  Scientists aren't sure how many brain cells you lose each day because of decay and misuse, but you don't need to worry.