This "powerhouse" tops the list, says Kathleen Zelman, MPH, RD/LD, WebMD's director of nutrition.
And Lisa Hark, PhD, RD, says, "Blueberries are not only delicious but are also rich in antioxidants." Hark is co-author, with Darwin Deen, MD, of Nutrition for Life: The No-Nonsense, No-Fad Approach to Eating Well and Reaching Your Healthy Weight.
According to the U.S. Highbush Blueberry Council, researchers believe that the antioxidants in blueberries work to reduce the buildup of "bad" LDL cholesterol...
one time is usually nothing to worry about. But it is a good idea to see your
doctor, because fainting could have a serious cause.
What causes fainting?
Fainting is caused by a drop
in blood flow to the brain. After you lose consciousness and fall or lie down,
more blood can flow to your brain so you wake up again.
common causes of fainting are usually not signs of a more serious illness. In these cases, you faint because
The vasovagal reflex, which causes the heart
rate to slow and the blood vessels to widen, or dilate. As a result, blood
pools in the lower body and less blood goes to the brain. This reflex can be
triggered by many things, including stress, pain, fear, coughing, holding your
breath, and urinating.
Fainting caused by the vasovagal reflex is often easy to
predict. It happens to some people every time they have to get a shot or they
see blood. Some people know they are going to faint because they have symptoms
beforehand, such as feeling weak, nauseated, hot, or dizzy. After they wake up,
they may feel confused, dizzy, or ill for a while.
Some causes of
fainting can be serious. These include:
You feel like your heart is
racing or beating unevenly (palpitations).
along with numbness or tingling on one side of the face or body.
What exams and tests might you need?
To find the
cause of fainting, a doctor will do a physical exam and ask questions about the
fainting episode. You can help your doctor by being prepared to describe what
happened before you fainted, how long you were "out," and how you felt when you
Depending on what the physical exam shows, the doctor may
want to do tests. These tests may include:
Heart tests such as
ECG, ambulatory monitoring (with a Holter monitor or
event monitor, for example),
echocardiogram, or an exercise stress
A tilt table test. This test checks how your body responds to
changes in position.
Tests for nervous system problems, such as
CT scan of the head,
MRI of the brain, or