science

heart attacks 

what causes a heart attack???
heart attack occurs when one or more of your coronary arteries get blocked over time, a coronary artery can narrow from the buildup of various substance including cholesterol.




How do you know if your having a heart attack 
pain,pressure, or squeezing in your chests.  pain or pressure in your upper body like your neck, jawline, back,stomach, or in one of your arms.



How do you prevent heart attacks (list)

1. avoid smoke. tone of the important thing you can do to improve your hearts heath is to not smoke.smoking can increases heart rate, tightens major arteries and can case an irregular heart rhythm. smoking also raises blood pressure.
2. exercise regularly.regular exercise helps improve heart muscle function after a heart attack and helps prevent a cholesterol and blood pressure.
3. healthy diet. trans fats and cholesterol in your diet can narrow  arteries to your heart, and too much salt can raise  blood pressure. eat a health diet that includes lean proteins, such as fish and beans, plenty of fruit and vegetable 
4. control stress. reduce stress in your day to day activities rethink workaholic habit and find healthy ways to minmize or deal with stressful events in your life.

thick and thin sides

thin-walled Chambers that receive blood from the vein, thick-walled chamber that forcefully pump blood out of the heart receives oxygenated blood from the pulmonary veins 

fat and muscles 
fat is dangerous to the heart.because it increases the risk for conditions that contribute