Researchers say air pollution's effects lessened in older men who consumed flavonoids, but more research needed
While U.S. hospital admissions for atrial fibrillation were up, death rates were down
French, Dutch studies draw differing conclusions
Study found patients who showed signs of overtreatment were twice as vulnerable
Researchers find 911 dispatchers can talk bystanders through the process -- and save lives
Mesh implant keeps clots that can form in left heart chamber from traveling to the brain, researcher says
Obesity and aging population may be contributing factors, researcher says
These disorders linked to risk for car accidents and poor health, study suggests
Rare genetic variation appears to cut the risk of heart attack in half, study reports
But experts say treatment should also focus on possible noncardiac causes of death
As 'good' cholesterol goes up, odds of heart disease, stroke go down
Finding suggests even if blood vessels aren't blocked, heart attack risk still increases significantly
Finding might explain link between atrial fibrillation, poorer thinking and memory, researchers say
For 1 in 5 patients with chest pain, there's no evident physical cause, study says
Bleeding risk appears greater than anticipated
But the overall risk is small, researchers say
Eat lots of fruits and veggies, get exercise, limit salt and don't smoke, experts say
Instead of reduction in fractures, study suggests higher risk of heart disease, cancer
Technique can trigger body's defense system to protect the heart, experts say
Americans need fewer trans and saturated fats, and more omega-3 fatty acids
Researcher believes issue has been 'largely unnoticed'
Study didn't find same effect in young women or teens of either sex
Identifying problems may prevent sudden cardiac arrest, new guidelines suggest
Sunflower oil linked to better cholesterol readings, study finds
Researchers suspect inflammation is the common denominator
Healthy eating may not always prevent metabolic syndrome, but may reverse it
Many Americans suffer from multiple conditions related to cigarettes
Designed to clear clogged arteries in thigh and knee
Following 5 healthy habits halved chances of most common kind of brain attack, study suggests
Lifestyle changes cited as reason for gains, researchers say
Risk factors include extra weight
Survival rates similar for those with looser glucose limits, trial finds
Lifestyle changes could make big difference for people with a genetic risk, researchers say
American Heart Association urges doctors to make sure patient understands dangers, test is appropriate
Statins appear to boost survival rates after bleeding in the brain, study reports
But keeping blood pressure in check does, researchers say
Detailed history, examination can reveal teens' risk for sudden death, experts say
Study suggests heart-healthy exercise may keep blood vessels more flexible
Findings could help explain association between dirty air, risk for heart disease, researchers say
Ultra-sensitive test detects trouble even with normal cholesterol, researchers find
But it's not clear if foods rich in this nutrient actually caused the lower risk
It's the first time an artificial cardiac valve has been made that grows over time, scientists say
Higher levels of activity reap greater benefits, researchers find
But researchers say exercise, education may help overcome deficiencies
Participants are healthier, possibly skewing results
Task force guidelines could apply to half of U.S. adults
People with underlying heart rhythm disorders may want to avoid clarithromycin, study suggests
People who felt like they were a part of their community had lower risk of heart attack
Lifestyle changes, wider use of medications driving the trend, researchers say