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Some changes in the heart and blood vessels normally occur with age, but many other changes that are common with aging are due to modifiable factors that, if not treated, can lead to heart disease. The right side pumps blood to the lungs to receive oxygen and get rid of carbon dioxide. Blood flows out of the heart through arteries, which branch out and get smaller and smaller as they go into the tissues. Capillaries are where the blood gives up oxygen and nutrients to the tissues, and receives carbon dioxide and wastes back from the tissues. is accredited by URAC, also known as the American Accreditation Health Care Commission (org).

However, an older heart may not be able to pump blood as well when you make it work harder.

Some of the things that make your heart work harder are:.

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A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. is also a founding member of Hi-Ethics and subscribes to the principles of the Health on the Net Foundation (ch) The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. Any duplication or distribution of the information contained herein is strictly prohibited. It involves getting together 10 (or more) men and women and providing them with an opportunity to talk to each other, one-on-one, for five minutes each.I modified this dating technique to make classroom presentations provide more practice with oral language while making them less threatening for students.What you do is you have students prepare a five-minute oral presentation, based on a topic of your choice. Next, they present it five times to five different people in the class.