What is the biggest risk of heart disease?
The biggest risk to the health of an individual is to have a blood clot, the National Institutes of Health said.
The blood clot is usually caused by a clotting disorder.
It occurs in a tiny blood vessel in the brain called a perivascular lesion, which is where blood vessels go to be repaired.
When the blood vessel becomes blocked, it can cause the body to shut down and stop clotting.
The risk of having a blood clots increases with the number of blood clotts, the NIH said.
It said a patient with a high blood pressure is at the highest risk of developing a blood vessel clots, because blood pressure increases when blood clumps.
The number of clots decreases with age, according to the NIH.
The study, published online Aug. 25 in the journal Circulation, also found that older people with a history of heart attacks were also more likely to develop a blood vessels clots.
Older people are at increased risk for clots of the upper part of their heart, the study said.
The new study compared the rates of blood vessel thrombosis (a clot in the artery) in people ages 75 and older and those age 65 and older.
The researchers used data from the Centers for Disease Control and Prevention’s National Vital Statistics System, which includes vital statistics from the U.S. Census Bureau.
They compared people ages 25 and older with people age 65 or older.
People with more than two years of medical care at least once a month, people with more chronic conditions, and people who smoke were excluded from the analysis.
They looked at all people age 75 and over who had a blood pressure of 130/90 or higher or were 65 or over, and used information on past medical conditions to calculate the likelihood of having one of the risk factors listed.
The researchers compared those risk factors with the likelihood they had for having a heart attack.
They also looked at how many of the 10 risk factors the patients had also had a heart event, such as stroke, heart attack, or sudden death.
They found that, of the patients with a blood flow problem, only about 1 in 7 of them had a cardiac event.
Of those with a clot problem, the risk was about 3 in 10.
The results suggest that having a high-risk blood clot problem may increase the risk of cardiovascular disease, and also increase the likelihood that patients will have a heart arrhythmia, which occurs when the heart stops beating.
However, the researchers noted that there is little evidence that people with these conditions will have heart attacks, stroke, or other cardiovascular problems.
The findings suggest that patients with these risks may be able to avoid having heart problems, but it may take a lot of work to do so, the scientists said.
They added that more research is needed to understand how risk factors affect cardiovascular risk.