[ti:Take Care of Your Teeth, Take Care of Your Heart][by:shang05.com][00:00.00]更多听力请访问shang05.com[00:00.04]Cleaning your teeth often, every day, is linked to a lower risk for heart problems.[00:08.48]A new study found that brushing your teeth several times a day resulted[00:15.36]in fewer cases of heart failure and atrial fibrillation— the term for an uneven heartbeat.[00:27.28]Heart failure happens when the heart cannot do its job of pumping blood through the body.[00:36.80]What the research found is that brushing your teeth three times a day,[00:43.32]or more, was linked to a ten percent lower risk of atrial fibrillation.[00:53.64]It was also linked to a twelve percent lower risk of heart failure.[01:01.28]The study was published last Monday in the European Journal of Preventive Cardiology.[01:09.48]The researchers examined information on more than 161,000 people in Korea with no history of heart problems.[01:23.84]They followed up ten and a half years later, and found that three percent[01:30.68]had developed uneven heart rhythms and almost five percent had developed heart failure.[01:41.00]All the participants in the study were part of the Korean National Health Insurance System, and aged 40 to 79.[01:53.44]They had usual medical exams between 2003 and 2004.[02:00.40]Information was collected on their height, weight, laboratory tests, sicknesses, and lifestyle.[02:10.44]They also noted their mouth health in connection with cleaning.[02:17.76]You may wonder, how are teeth health and heart health connected?[02:24.24]Earlier research suggests that not taking care to clean and brush teeth leads to bacteria in the blood.[02:36.00]This can cause inflammation, and increases the risk for unusual heartbeat and heart failure.[02:47.04]A study last year by the American Heart Association showed that brushing your teeth[02:55.04]twice a day for at least two minutes may lower the risk of cardiovascular, or heart, diseases.[03:06.20]That study looked at a smaller group of fewer than 700 people.[03:12.48]The AHA said that the researchers found that people who brushed less[03:20.28]than twice a day for less than two minutes were three times more at risk,[03:28.40]compared to those who brush at least twice a day for two minutes.[03:35.80]Gums are the soft tissue structure that hold the teeth.[03:41.64]They need to be cleaned as well.[03:44.80]Experts say if gums are not cared for this way they can become inflamed.[03:52.04]They say there is a connection between such inflammation, and future heart disease.[04:00.08]The lead investigator of the new study is Tae-Jin Song,[04:05.92]a doctor and professor at Mokdong Hospital at Ewha Womans University in Seoul, South Korea.[04:15.80]He noted "we studied a large group over a long period, which adds strength to our findings."[04:25.04]But he said that the research was limited to one country[04:30.96]and as an observational study does not prove causation.[04:37.28]The American Dental Association agrees.[04:41.24]The organization said "this study is interesting, and[04:46.52]while it may suggest an association between tooth brushing and heart health,[04:54.12]it does not show a direct connection."[05:00.00]To have good oral health, the ADA advises people to:[05:05.72]Brush their teeth twice a day for two minutes each time with a fluoride toothpaste[05:14.20]Clean between their teeth once per day[05:19.32]Maintain a healthy diet[05:23.48]See a dentist regularly[05:28.16]Mouth care companies have taken note.[05:31.92]Some manufacture electric toothbrushes programmed to run for two minutes.[05:40.48]That way, people do not have to watch the time while brushing their teeth.[05:48.32]I'm Anne Ball. 更多听力请访问shang05.com