Archive for the ‘heart disease’ Category

Traffic Pollution Might Raise Heart Risks

Thursday, July 15th, 2010

If you eat a steady diet of cheeseburgers, butter, fried chicken, milkshakes, and bacon, you’re probably increasing your risk of cardiovascular disease. It’s common knowledge; bad diet equals heart problems.

But where you live might be a factor too.

According to a new study in the journal Epidemiology, researchers say middle-aged and older adults who live near busy roads may have a higher risk of dying from heart disease.

The culprit is air pollution.

Motor vehicles release toxins such as carbon monoxide, sulfur dioxide, chlorofluorocarbons, and nitrogen oxides.

For the study, scientists gathered data on more than 450,000 Vancouver, Canada residents between the ages of 45 and 88, and people who lived within 500 feet of a highway or within 165 feet of a major road were more likely to die of heart disease, compared to residents living farther away.

The researchers presented air pollution data to show that people living close to highways are exposed to higher levels of particulate matter, nitrogen dioxide, and other pollutants associated with traffic.

So the scientists are encouraging people to consider air pollution, along with diet, exercise, and smoking habits, as a risk factor for heart disease.

In 2008, a study found open-air poultry trucks traveling down the road leave a trail of bacteria, including bacteria resistant to antibiotics.

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Sugar Linked to High Blood Pressure Too

Monday, July 12th, 2010

Eat a diet of fried bacon, canned Spam, potato chips, and pork rinds, and odds are you’re going to get a touch of heart disease.

Salt has long been associated with hypertension, stroke, and cardiovascular disease, and also stomach cancer and osteoporosis.

But now sugar – mostly known for making you fat and rotting your teeth – is being linked to high blood pressure too.

Published in the Journal of the American Society of Nephrology, experts found people consuming more than the average amount – approximately 2.5 cans of soda – of sugar each day had higher blood pressure than people who ate less.

Consuming too much fructose increased the likelihood of having blood pressure above 140/90 mmHg by 30% and 160/100 mmHg by 77%. Blood pressure over 140/90 is considered high.

But the study is not a precise indictment of sugar. Scientists admit that data on the participants’ diet was not accurate because participants were asked to describe their diets based on memory, which could have included additional fructose consumption.

Even still, sugar is not health-promoting, especially high fructose corn syrup, which has been linked to obesity. Obesity is a well established factor in the development of heart disease, high cholesterol, and high blood pressure.

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UK Officials Looking to Ban Trans-Fat and Salt

Monday, June 28th, 2010

Trans-fat is hydrogenated vegetable oil, used to extend the self-life of processed foods, like snack cakes and potato chips, but trans-fat is not natural, its produced in laboratories, so as such our bodies have difficulty processing it.

Studies have shown trans-fat raises the risk of cardiovascular disease, so bans on trans-fat have been popping up all over. New York City banned trans-fat from restaurants in 2006.

And the United Kingdom is looking to move in that direction too. The National Institute for Health and Clinical Excellence (NICE) seeks to impose stricter regulations on both trans-fat and salt; many process foods contain exorbitant amounts of sodium, such as frozen dinners and canned goods.

Salt has been linked to heart disease, high blood pressure, gastric ulcers, heart burn, osteoporosis, and stomach cancer.

Officials say nearly 40,000 premature deaths and $40 billion in medical costs could be prevented each year in Great Britain alone if trans-fat is banned from food. NICE cites the health benefits of similar bans and restrictions on salt in places like the United States and Japan..

NICE claims that measures to reduce salt and trans-fat will begin to yield public health benefits in as little as 2 to 3 years.

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Acid Reflux Causes Sleep Problems

Wednesday, June 23rd, 2010

Heartburn sounds like the funny cliché you get after an evening of spicy food and beer, but for heartburn sufferers it’s no picnic.

Symptoms of heartburn include chest, neck, throat, or jaw pain brought on by the regurgitation of gastric acid.

In April, it was estimated that 42% of the United States population have heartburn and are able to self-treat it. But people with persistent heartburn should consult a doctor.

And unchecked heartburn could be a symptom of ischemic heart disease; a condition characterized by reduced blood supply to the heart.

If that wasn’t bad enough, a new study in the journal Clinical Gastroenterology & Hepatology claims chronic acid reflux may disrupt sleep and cause people to wake up throughout the night, even if they’re not having a heartburn flare up.

Researchers studied 48 adults, 39 with gastroesophageal reflux disease (GERD) and 9 adults without GERD, and found the participants with GERD woke up an average of three times per night, compared the twice per night among the GERD-free people.

Participants’ sleep disruptions were often related to bouts of reflux; measured by a probe placed in the esophagus overnight – wow that sounds comfortable!

However, the study found that most of the awakenings were not caused by perceived heartburn symptoms. Adults with GERD reported sensing symptoms in only 16% of their sleep disruptions.

Even still, the researchers believe GERD and heartburn may be contributing to poor sleep more often than patients realize.

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Early Menopause Increases Heart Risks

Tuesday, June 22nd, 2010

After 50 years of “the curse” women get rewarded with another couple years of menopause. Menopause is the natural cessation of ovarian function; meaning women stop getting their period and can no longer have children.

The process is natural, but far from pleasant; common symptoms are hot flashes, night sweats, migraine, rapid heartbeat, osteoporosis, back pain, fatigue, depression, sexual dysfunction, and decreased libido.

Go ahead and add cardiovascular disease to the list. A new study says women who go through menopause before 46 years of age have an increased risk of cardiovascular disease; including heart attack and stroke.

The average age of menopause is 51 years old.

Presented at the Endocrine Society in San Diego, scientists studied over 2,500 women, ages 45 to 84, starting in 2000. None of the women had a cardiac event, such as a heart attack, stroke, or chest pain before the age of 55.

But the women who with through early menopause were more likely to suffer one of these heart problems. Almost 6% of women who underwent menopause early had some sort of heart trouble, compared to the women who had not begun menopause or who went through it after 47 years old.

Common treatments used to ease menopause are hormone replacement therapy, antidepressants to improve mood, and blood pressure medications control hot flashes.

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England Cuts Smoking and Heart Attacks Too

Thursday, June 10th, 2010

Smoking bans are all the rage, with states like New York and New Jersey banning smoking in bars, and countries like Germany and England doing the same.

And for England, putting the clamps on smoking has not only cleared the air, but it’s also reduced the number of heart attacks.

Published in the British Medical Journal, data showed one year of smoke-free legislation in England, resulted in 1,200 fewer emergency heart attack hospital admissions between 2007 and 2008.

That’s a decrease of only 2.4%, but researchers point out that prior to the legislation many public places and work environments in the UK already went smoke-free.

So this study reveals that countries with existing anti-smoking laws can still benefit from an outright bans.

More than 60 of the most populated cities in the US have imposed bans on smoking, such as Atlanta, Las Vegas, Philadelphia, and Pittsburgh.

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Mediterranean Diet Helps People with Heart Disease

Wednesday, June 9th, 2010

The Mediterranean diet has long been associated with better health, especially reducing the risk of cardiovascular disease.

But now, a new study suggests following the Mediterranean diet – which is rich in fruits, vegetables, wine, whole grains, beans, nuts, fish, and olive oil, and low in meat and dairy – may help your heart even if you already have heart disease.

Writing in the American Journal of Clinical Nutrition, experts found people who suffered a heart attack were 31% less likely to have another heart attack – or even chest pains – if they consumed a “Mediterranean-style” diet.

Results of the study had a dose effect. The more closely participants followed a Mediterranean diet the more the risk of another cardiac even decreased.

And specific foods had a very positive effect on heart attack risk. People eating nuts and vegetables daily or weekly had a 20% lower risk of having a heart attack two years after their initial hospitalization.

Nuts, despite their infamous high fat content, are known heart protectors. Consuming nuts, like walnuts and almonds, helps reduce LDL, or “bad,” cholesterol concentrations.

So the researchers recommend people incorporate elements of the Mediterranean diet into their eating habits to improve heart health.

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Portuguese Diet Also Good for the Heart

Thursday, June 3rd, 2010

The traditional Mediterranean Diet – rich in fruits, vegetables, olive oil, wine, and fish, and low in meat and dairy – has long been associated with good health, especially for the heart.

But now, a new diet, also from the Mediterranean, but slightly different, may protect the heart too.

Referred to as the Southern European Atlantic Diet, or SEAD, eaten in Portugal and a region in northwest Spain, the SEAD is comprised of fruits, vegetables, fish, and wine with meals, but also includes red meat, pork, dairy products, and more potatoes, unlike its cousin.

Writing in the American Journal of Clinical Nutrition, researchers claim the Southern European Atlantic Diet contributed to a low rate of heart disease in the regions where it is consumed.

For the study, scientists analyzed data on 820 locals who suffered a heart attack and found those who most closely followed the SEAD had a 33% lower risk of cardiovascular disease.

But the SEAD might need a little tweaking – kicking out the red meat, dairy, and potatoes – because omitting these foods decreased the risk 60%.

Another important factor to consider is the amount of exercise people eating the Mediterranean diet – and probably the SEAD too – are getting. If you eat either way and then go for long walks or work in the fields, your diet is more likely to offer increased benefit.

In other words, no diet is complete without plenty of physical activity.

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Chocolate May Lower Cholesterol

Wednesday, June 2nd, 2010

Just say the word chocolate and most people start salivating like a grizzly Rottweiler staring down a mailman.

And not only is chocolate a god among confectionaries, but it’s also been linked to a variety of health benefits; such as protecting against heart disease.

Chocolate has earned that reputation because of its high concentration of antioxidants, which have been shown to reduce oxidation; a risk factor for cardiovascular disease.

And now, published in the American Journal of Clinical Nutrition, researchers say consuming small amounts of chocolate – sorry, only 6 grams – may lower cholesterol levels in some people.

Individuals who already had heart disease showed a reduction in LDL, or “bad,” cholesterol when eating modest amounts of chocolate – so you shouldn’t devour an entire bag of Hershey’s Assorted Miniatures.

And chocolate’s effect on reducing cholesterol was attributed to polyphenols – surprise-surprise, an antioxidant. A 1.25 ounce bar of chocolate contains roughly 300 milligrams of polyphenols.

But if you don’t like chocolate, or are more of a vanilla person – or shudder the thought, a strawberry person – polyphenols can also be found in vegetables and wine.

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Brushing Your Teeth Cuts Heart Disease Risk

Thursday, May 27th, 2010

Brushing your choppers keeps the dentist and that ungodly drill away – that alone is reason to brush a billion times a day.

But now a new study claims brushing your teeth helps prevent heart disease too.

Writing in the British Medical Journal, researchers say people with gum disease are more likely to develop cardiovascular disease because gum inflammation is associated with inflammation linked to heart disease.

Blood test of people with poor oral hygiene revealed higher levels of C-reactive protein, a known risk factor for heart trouble.

Of the 12,000 adults studied, those with poor oral hygiene had 70% more risk of developing heart disease than those who brushed twice a day, with 555 of the participants suffering a heart attack.

Dental health has been on the minds of human beings for a long time. It’s not just a developed world obsession. Ancient Egyptians would fashion toothbrushes – albeit crude – from twigs and leaves. What’s worse, that or the drill?

But in the United States, tooth brushing didn’t become common place until the end of World War II, when many U.S. soldiers continuing their mandatory tooth brushing habits when they returned home.

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