After the body uses oxygen that is in the blood,. the blood enters the heart through the right atrium. ... While the blood is in the lungs, it is loaded with oxygen, and then the oxygen-rich blood goes to the left atrium. ... In this test, your heart rate and blood pressure are monitored while you lay flat on a table, which is then tilted. ... If the electrical wiring of your heart is damaged, an arrhythmia can develop. ... Many things can damage your heart's electrical system and lead to an electrical problem, such as coronary artery disease, high blood pressure, and a leaky heart valve....

• Word Count: 2852
• Approx Pages: 11
• Grade Level: High School

Blood pressure increases, which can cause heart attacks or strokes. ... They cause your heartbeat to slow down; blood vessels start relaxing and lowering blood pressure. ... Inhalants raise the pressure of the fluid in the eyes. ... The Impact on the Mind Marijuana use reduces learning ability. ... Regular use can delay the puberty in young men and reduce sperm production. ...

• Word Count: 2633
• Approx Pages: 11
• Grade Level: High School