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8 answers

This is an excellent question with a very complex answer. First those who exercise tend to be better educated, more affluent, and not only better genetics but better health habits and any one or more of these may be responsible for the benefit seen in those who exercise. Second the benefits of exercise are real but they are realized in people to differing degrees depending upon your risk of heart disease. Exercise itself has no direct effect on levels of VLDL, TG, LDL, or IDL although exercise does increase HDL and most especially HDL2 which is said to be cardioprotective. The only problem with this universally accepted belief is that no matter how much you exercise the HDL does not typically elevate more than 10% which by itself would not account for the reduction in cardiovascular disease seen in those who exercise. The notion that the heart is a muscle and exercise exercises the heart muscle is not only faulty but the opposite is more correct as 'athlete's heart' is a condition of serious athletes where the heart muscle increases in size to a greater extent than its blood supply grows shortening their life expectancy. There is much more information available but despite what I have said above and for whatever reasons reasonable exercise is always beneficial cosmetically, emotionally, and physically. Good luck.

2006-12-03 13:21:48 · answer #1 · answered by john e russo md facm faafp 7 · 0 0

Because
1) the heart muscle will be flabby and will not pump blood as it should
2) blood actually pumping through the heart helps keep the smaller blood vessels clear. If there is not enough force provided by the blood pumping through then small blockages can occur and a blood vessel dies off. Although initially the blood finds another route eventually there are no more healthy vessels in that area and 'bingo' .

2006-12-05 07:02:32 · answer #2 · answered by D B 6 · 0 0

lack of exercise, your body becomes lethargic and you lose muscle tone. The heart needs to have regular aerobic exercise and to be put under increased exercise to keep it working properly. Without regular exercise you can become low in mood and much more sedentary, so get up, go out do something for fun and keepfit at the same time.

2006-12-03 17:39:30 · answer #3 · answered by kenjinuk 5 · 0 0

In simple terms, your heart is a muscle and muscles need to be exercised to keep their efficiency. Lack of exercise can lead to an unhealthy heart. No need to go mad just regular (at least 30 minutes daily) of exercise to get you comfortably out of breath.

2006-12-04 16:20:48 · answer #4 · answered by Frank Furillo 5 · 1 0

It can lead to the build of plaque in the arteries and vein. This leads to blockage of those arteries and veins causing the heart to spasm and die. This will cause either anuerysm or heart attacks.

2006-12-03 17:38:20 · answer #5 · answered by Sue W 1 · 0 0

it stems the flow of blood nessesary to keep your arteries free from build up of plaque or cholestrol and in turn starve your system of normal blood supply causing angina and also heart attacks

2006-12-04 16:35:48 · answer #6 · answered by srracvuee 7 · 0 0

because of the fat which dicreases the inside of the vessels
A whole day on Yahoo is devastating and shortens a lot your life expectation too

2006-12-03 17:39:48 · answer #7 · answered by Anonymous · 0 0

everthing in your body needs to get pumping now and again...the more exercise you do the more your heart works..this helps to clear things....Do nothing and its down to your diet to help you live a heathly life........hope this helps

2006-12-03 17:39:19 · answer #8 · answered by Anonymous · 0 0

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