Sentences with phrase «blood flow to the brain as»

When you eat too much, you decrease the blood flow to your brain as it's preoccupied with your digestive system.

Brisk walking for 30 to 50 minutes 3 or 4 times each week for 3 months improved blood flow to the brain as much as 15 % in a study of women.

Not exact matches

«If you typically see something stressful as a challenge to be tackled, then blood flows to your heart and to your brain, and you experience a brief but energizing spike of cortisol.»

Walking while on a conference call can even result in better communication, as walking increases blood flow to your brain, helping you to express ideas more freely.

Using functional magnetic resonance imaging to measure changes in blood flow, she found that as people received more information, their brain activity increased in the dorsolateral prefrontal cortex, a region behind the forehead that is responsible for making decisions and controlling emotions.

For example, how is that a sea lion, once they enter the water, that it's heart rate drops, blood vessels constrict, and lungs begins to collapse, whereby blood flows as usual to the heart and brain, but less reaches non-vital organs for swimming, and are now able to draw on oxygen in the muscles and blood?

These published studies showed that crude kuzu root preparations or their extracted flavonoids, given as injections or taken orally, Researchers also report that flavonoids lower cholesterol levels, reduce the risk of forming blood clots, protect the heart against cardiovascular disease, and protect the brain by dilating cerebral microvessels to increase blood flow.

According to Cleveland Clinic: «In addition to having antioxidant qualities, research shows that flavanols have other potential influences on vascular health, such as lowering blood pressure, improving blood flow to the brain and heart, and making blood platelets less sticky and able to clot.»

It turns out that while they were praying, participants had less blood flow to their prefrontal cortex and frontal lobe, the areas of the brain where complex behaviors such as planning and expression of personality take place.

While they don't have definite answers, besides having good genes, Kawas said, the answer is probably a combination of being resilient to Alzheimer's Disease and also that they did not develop other dementia - causing conditions, such as microscopic infarctions that occur when blood flow is blocked from certain regions of the brain and hippocampal sclerosis, which causes neuron loss.

If his hypothesis proved true, Moore says, cerebral blood flow would no longer be thought of simply as a means to investigate brain function.

Veins are flexible and can get twisted, slowing the rate of blood flow and potentially leaving waste and compounds such as iron to accumulate in the brain.

«We use arterial blood water as a contrast tracer to measure blood flow change, which is highly associated with brain function.»

Previous studies have looked mainly at genes causing atherosclerosis and genes affecting the function of platelets and clotting processes as risk factors for ischemic stroke (clot obstructing blood flow to the brain).

Infection normally begins in the lungs as TB and can spread to the brain and spinal cord, causing swelling and restricting blood flow.

During a stroke, blood flow to part of the brain is cut off — along with its supply of oxygen and nutrients such as sugar.

The technique uses magnetically labeled blood water as a tracer to quantify brain blood flow.

Scientists already employ fMRI, which uses changes in blood flow as a proxy for brain activity, to scan the brains of restrained monkeys, but Berns wanted to train dogs to willingly enter the machine and learn simple things, such as associating a hand signal with a reward of a hot dog, all the while staying still enough to collect interpretable brain scans.

Instead they clump and choke off blood flow, causing intense pain as bits of lung, bone, brain, and kidney succumb to a lack of oxygen.

A functional MRI scan, known as an fMRI, will check for increases in blood flow in certain areas of the brain as I react to or record an experience, initiate an action, or ponder something.

The study lends support to a long - held hypothesis that yawning has an important physiological effect, such as increasing blood flow to the brain and cooling it down.

In their recent PNAS paper members of the Imperial College team reported that the presence of LSD was linked to a boost in blood flow and functional connectivity between the brain's primary visual cortex and seemingly unrelated brain networks that mediate other sensory inputs as well as higher - level processes including emotion.

As the animals were shown different animated graphics, neurons responded within milliseconds, and astrocytes became active seconds later — matching the time delay that neuroimagers have long known accompanies blood flow to active brain regions.

The fast fMRI was able to detect the subtle and very rapid oscillations in cerebral blood flow in the brain's visual cortex as the volunteers observed the changing pattern.

The present blood flow study adds significantly to the findings from that prior study and furthermore suggests that disturbances in the speech processing areas of the brain are likely of central importance as a cause of stuttering.

Next, the resting participants underwent two scans with another fMRI method known as blood oxygen level — dependent, or BOLD, to track connections and apparent information flow between brain regions.

Tony and his clientele admit to taking stronger «smart drugs» than those he's selling tonight, drugs such as piracetam (which supposedly boosts levels of acetylcholine in the brain), hydergine and propanolol (both said to work by increasing blood flow through the brain), L - Dopa (a chemical precursor of the neurotransmitter dopamine), phenytoin, vasopressin, deprenyl, the list seems almost endless.

The researchers were able to zero in on the Broca's area as well as related brain circuitry specifically linked to speech, using regional cerebral blood flow as a measure of brain activity, since blood flow is typically coupled with neural activity.

Hsia's aunt needed treatment fast with a clot - busting medicine and a procedure known as an endovascular thrombectomy, which removes the clot and restores blood flow to oxygen - starved patches of the brain.

The team thinks there must be a mechanism that ups the flow of blood to the brain as a survival strategy in such circumstances.

I am proposing a demanding criterion: that you be able to detect abnormalities in patients beforehand by such brain - imaging techniques as functional MRI [which measures blood flow in the brain], and then use imaging to see whether or not there is a change in those markers for the disease as the therapy progresses.

Expanding the Therapeutic Window for Treatment As PI at MSM, Ford takes what he learned during his training and applies it to stroke — caused by blockage or rupturing of arterial blood flow leading to or in the brain — and atherosclerosis — hardening of arteries over time due to fat - deposit build - up on their inner lining — research.

In one, the carotid arteries were blocked with a suture for one hour, much as a blood clot blocks the flow of blood to the brain in a stroke.

The trial involved 5,170 people who were hospitalized after suffering minor ischemic strokes or stroke - like events known as transient ischemic attacks, or TIAs, in which blood flow to the brain is briefly blocked.

Using an optical fiber implanted in that region, the researchers were able to stimulate the primary motor cortex near where the stroke had occurred, and then monitor biochemical changes and blood flow there as well as in other brain areas with which this region was in communication.

Such studies don't absolve general anesthetics, and researchers are investigating other potential POCD culprits, such as reduced blood flow to the brain during surgery.

These cells have the ability to cross the blood - brain barrier and travel directly into the nervous system to improve blood flow to the brain and repair some of the nerve damage which has occurred as a result of your degenerative disease or neurological injury.

As a result, the mice had high blood pressure, increased blood vessel stiffness, and reduced blood flow to the brain.

Doctors at Okyanos utilize a specifically developed Okyanos protocol for opening up the blood brain barrier to help deliver stem cells directly to the brain; a technique that has been proven effective in independent studies This enables doctors to target your stem cells inside the brain to re-establish blood flow and repair damaged nerve cells (neurons) as well as target the restoration of myelin, halting the future progression of symptoms.

By using PET to monitor blood flow and metabolism, Raichle and his collaborators have shown how the brain responds when a subject is asked to perform tasks as diverse as memorizing words or anticipating an unpleasant experience.

These special healing cells also hold as their primary mechanism the growth of new blood vessels which restores the flow of oxygen - rich blood to the brain for a wide spectrum of healing benefits.

Vascular dementia, on the other hand, appears to occur when blood flow to certain areas of the brain is interrupted, such as during strokes and so - called mini-strokes.

As the blood flow through your brain, organs, and gut increases, your body will learn to relax, soften, and fully digest its emotions.

As Rabin's team explained, there's been evidence in prior studies that the antioxidant flavanols in dark chocolate might help boost blood flow to the nervous system, boost heart function and even help preserve the aging brain.

Protect yourself Tilting your head backward into a sink while shampooing can alter blood flow to the brain, but researchers at the University of Medicine and Dentistry of New Jersey reported that using a support, such as a towel, minimizes the problem.

Regular exercise targets both brains as once, as it can help improve your digestion and bowel movements, sleep, mood, blood flow, and blood sugar regulation — making cells more sensitive to take in glucose for energy.

It increases the blood flow and feeds the brain with more oxygen, it aids the release of hormones and stimulates a process known as neurogenesis, i.e. the brain's ability to grow new brain cells and adapt existing ones.

As the authors expected, a higher waist - to - height ratio was associated with less blood flow in certain areas of the brain involved in attention, memory, reasoning, and judgment.

Most strokes — about 85 % — occur when a clot or some other obstruction blocks blood flow to (or within) the brain; these are known as ischemic strokes.

They were given thinking and memory skill tests, as well as ultrasound tests for measuring blood flow volume to the brain throughout the tests.