In case you were wondering number two is cancer.
Risk factors associated with number one and three also influence some forms of number two.
A very easy way to remember what the heart and lungs are doing, or, what happens when they don t do is to remember what a water pump in a home does and how it does it. When a pipe stops up or bursts, water does not get to its destination. These same events and results occur in the human body and when they do death occurs. The heart is about the size of a fist. The adult heart at rest beats approximately 60 to 80 times a minute and approximately 100,000 a day.