eat healthy it puts very little strain on your heart.
verb: Don't strain yourself.Noun: Physical strain is bad for the heart.
strain on the heart means that there is some pathological condition causing the heart to work harder. e.g stenosis, emboli, infarction... we can observe this strain by using methods like ECG or echocardiogram.
This treadmill has heart monitors and a cooling fan. It also includes an impact absorbing feature to help take strain off of your joints. The low-impact hydraulic steps ensure legs and ankles are at no risk of injury.
You can not, Sorry
Quit meat (or at least cut down), Avoid fast food and fatty foods, exercise, but don't strain yourself (running and swimming are the best).
Respect their wishes and take it slow. Let your heart be your guide.
Because the strain built up in the moving subduction zone rocks just off the coast of Japan reached a point that exceeded the strength of those rocks, resulting in the rocks fracturing and sliding very rapidly to relieve the strain.
to much exercise can tire your body and can tensen up your muscles. for heart disease patients it can cause immense strain on the heart and increases the chances of heart attack.
No, keeping your hand on your heart is showing that you have the same respect. 
well because if you dont breath your heart wont work. your heart helps you breath so never and promise not to take drugs and dont hold your breath please
Like many people know, you heart pumps blood to your lungs where the red blood cells pick up oxygen then continues to take the oxygen to your muscles. Your muscles pulls out the oxygen, uses it and puts carbon dioxide in the red blood cells where your heart pumps it back to your lungs to drop off the CO2 where the cycle repeats. When you strain your muscles they need more oxygen so your heart has to work harder to get more oxygen to your muslces.
The most serious one is rheumatic heart disease.The most serious one is rheumatic heart disease.