Exercise stress tests are usually akin to exercising hard, but not strenuously. The person on treadmill is closely monitored and a doctor is on hand in case there are any problems. As well, person can stop test anytime if they do not feel right. However, it is best to let test run until it is finished, as it gives best idea of how well body is working.

A final kind of stress test is thallium test. These tests are usually administered in people who seem to have blockages in their circulatory system and blockages need to be located. Thallium tests are usually run in conjunction with an exercise stress test and, after person is done on treadmill, person is injected with a slightly radioactive thallium solution. Once thallium get into bloodstream, a special camera examines person's body in order to look for places where thallium, and thus blood, is not flowing properly. Thallium tests are not given very often, as they are mostly used when doctors know there is a blockage, but are not sure where to look for it. Obviously, some people cannot be asked to run on a treadmill and they are usually given a drug as a substitute in order to locate blockage.

There are a variety of stress tests available and your doctor is best person to talk to if you are interested in taking one. These tests are very valuable to check your overall health level and they provide a great deal of information that can be used to diagnose any problems or prevent them before they start. So if you are feeling effects of stress and you wonder if it is causing health problems, there are ways to find out what you or your doctor want to know.

The Nautilus elliptical E3000 has twenty resistance levels and an electromagnetic self generating system, so it requires no outside power such as electricity or batteries. The brake system is motorized and machine has eleven programs. The Nautilus elliptical E3000 is about five hundred dollars more than E2000. They give a thirty year warranty on frame, three years on parts, two years on electronics, one year on labor, and one year on on wear items.