Silent ischemia has no symptoms. But researchers have found that if you have episodes of noticeable chest pain, you may also have episodes of silent ischemia.
The following tests can be used to diagnose silent ischemia:
An exercise stress test can show blood flow through your coronary arteries in response to exercise, usually walking on a treadmill.
Holter monitoring records your heart rate and rhythm over a 24-hour period (or longer). You wear a recording device (the Holter monitor), which is connected to disks on your chest. Doctors can then look at the printout of the recording to find out if you have had episodes of silent ischemia while you were wearing the Holter monitor.
How is ischemia treated?
Treatment for ischemia is similar to that for any form of cardiovascular disease and usually begins with the following lifestyle changes:
-If you smoke, quit.
-Control high blood pressure, cholesterol, and diabetes.
-Limit how much alcohol you drink.
-Adopt healthy eating habits.
-Start an exercise program that has been approved by your doctor.
We human beings are hardwired to sleep eight hours a day. What happens when we don’t do this? No matter the reason, when we deprive our bodies of sleep, there are significant physical and mental consequences.
This is what happens to your body if it’s deprived of sleep:
-You have problems with memory and concentration.
-You have problems finding the right word.
-You get irritable.
–Neurotransmitters in the brain become altered.
-You become more susceptible to infection.
-At its extreme, sleep deprivation can lead to death.
A bacterial protein in common house dust may worsen allergic responses to indoor allergens, according to research conducted by the National Institutes of Health and Duke University. The finding is the first to document the presence of the protein flagellin in house dust, bolstering the link between allergic asthma and the environment.
Scientists from the NIH’s National Institute of Environmental Health Sciences (NIEHS) and Duke University Medical Center published their findings in people and mice online in the journal Nature Medicine.
“Most people with asthma have allergic asthma, resulting largely from allergic responses to inhaled substances,” said the paper’s corresponding author Donald Cook, Ph.D., an NIEHS scientist. His research team began the study to identify environmental factors that amplify the allergic responses. “Although flagellin is not an allergen, it can boost allergic responses to true allergens.”
An experimental Alzheimer’s treatment slowed mental decline in patients with early stages of the disease by 34 percent, the first evidence that a medication may be able to alter the course of the disease, according to research presented by scientists meeting in Boston this week.
Scientists were quick to note that the results they found in their analysis of the drug, known as Solanezumab, were modest and that much more study needs to be done to confirm that the medication truly is effective.
But they said the findings give a powerful boost to a growing belief by researchers that medications such as Solanezumab, designed to clear abnormal proteins in the brains of Alzheimer’s patients, are the way to battle the disease that affects more than 5 million Americans.
A nerve conduction study (NCS) is a test commonly used to evaluate the function, especially the ability of electrical conduction, of the motor and sensory nerves of the human body.
Nerve conduction velocity (NCV) is a common measurement made during this test. The term NCV often is used to mean the actual test, but this may be misleading, since velocity is only one measurement in the test suite.
Let’s watch the video:
A stroke occurs when the blood supply to part of your brain is interrupted or severely reduced, depriving brain tissue of oxygen and food. Within minutes, brain cells begin to die.
A stroke is a medical emergency. Prompt treatment is crucial. Early action can minimize brain damage and potential complications.
The good news is that strokes can be treated and prevented, and many fewer people die of stroke now than even 15 years ago. Better control of major stroke risk factors — high blood pressure, smoking and high cholesterol — may be responsible for the decline. Watching this 3 risk factors -and others- we can keep “beating” up the stroke.
Parkinson’s disease is a progressive disorder of the nervous system that affects your movement. It develops gradually, sometimes starting with a barely noticeable tremor in just one hand. But while tremor may be the most well-known sign of Parkinson’s disease, the disorder also commonly causes stiffness or slowing of movement.
In early stages of Parkinson’s disease, your face may show little or no expression, or your arms may not swing when you walk. Your speech may become soft or slurred. Parkinson’s disease symptoms worsen as your condition progresses over time.
Although Parkinson’s disease can’t be cured, medications may markedly improve your symptoms.
Tremor. Your tremor, or shaking, usually begins in your limb, often your hand or fingers. You may notice a back-and-forth rubbing of your thumb and forefinger, known as a pill-rolling tremor. One characteristic of Parkinson’s disease is tremor of your hand when it is relaxed (at rest).
Slowed movement (bradykinesia). Over time, Parkinson’s disease may reduce your ability to move and slow your movement. This may make simple tasks difficult and time-consuming. Your steps may become shorter when you walk, or you may find it difficult to get out of a chair. Also, your feet may stick to the floor as you try to walk, making it difficult to move.
Rigid muscles. Muscle stiffness may occur in any parts of your body. The stiff muscles can limit your range of motion and cause you pain.
Impaired posture and balance.
Loss of automatic movements. In Parkinson’s disease, you may have a decreased ability to perform unconscious movements, including blinking, smiling or swinging your arms when you walk. You may no longer gesture when talking.
Speech changes. You often may have speech problems as a result of Parkinson’s disease. You may speak softly, quickly, slur or hesitate before talking. Your speech may be more of a monotone, rather than with the usual inflections.
Medications typically markedly reduce many of these symptoms. These medications increase or substitute for a specific signaling chemical (neurotransmitter) in your brain: dopamine. People with Parkinson’s disease have low brain dopamine concentrations.
When to see a doctor
See your doctor if you have any of the symptoms associated with Parkinson’s disease — not only to diagnose your condition but also to rule out other causes for your symptoms.
Let’s watch a video about the Autonomic Nervous System:
What is syncope?
Syncope is the brief loss of consciousness and posture caused by a temporary decrease in blood flow to the brain. Syncope may be associated with a sudden fall in blood pressure, a decrease in heart rate or changes in blood volume or distribution. The person usually regains consciousness and becomes alert right away, but may experience a brief period of confusion.
Syncope is often the result of an underlying medical condition that could be related to your heart, nervous system or blood flow to the brain.
What are the symptoms of syncope?
The most common symptoms of syncope include:
Most common causes
-Falling for no reason
-Fainting, especially after a meal or after exercise
-Feeling unsteady or weak when standing
You know exercise is good for you, but do you know how good? From boosting your mood to improving your sex life, find out how exercise can improve your life.
Want to feel better, have more energy and perhaps even live longer? Look no further than exercise. The health benefits of regular exercise and physical activity are hard to ignore. And the benefits of exercise are yours for the taking, regardless of your age, sex or physical ability. Need more convincing to exercise? Check out these seven ways exercise can improve your life.
No. 1: Exercise controls weight
No. 2: Exercise combats health conditions and diseases like cardiovascular lowering levels of bad cholesterol; stroke, type 2 Diabetes, depression, certain types of cancer, metabolic syndrome, arthritis and falls, etc…
No. 3: Exercise improves mood boosting your confidence and self-esteem.
No. 4: Exercise boosts energy delivering more and when your heart and lungs.
No. 5: Exercise promotes better sleep but just don’t exercise too close to bedtime.
No. 6: Exercise puts the spark back into your sex life boosting your blood circulation and also enhance arousal for women.
No. 7: Exercise can be fun and -outdoor or indoor, with somebody or just with yourself- at least is worth to try it! That’s why they call it the “wonder” or “miracle” drug.
So put a little healthy fun in your life and watch the video before, after or while you do your daily regular exercises. Enjoy Life!
MRI scans, as a method of treatment for depression were discovered accidentally, like many discoveries on Medicine. These scans were then studied and led to serious research and finally a new cure for depression. Brain scans are usually an unpleasant experience for most people, but this proved different for people who were suffering from bipolar disease or different kinds of depression. Various studies (from 2009 to present days) claim “Antidepressant effects of magnetic resonance imaging-based stimulation on major depressive disorder”.
They found that people in the scanner group improved much more than those in the sham group over two weeks. Actually there were two different kinds of scans, T1 structural MRI and EPI functional MRI, but they were the same:
Now, if this were true, it would be huge. For one thing, it would undermine the whole premise of functional MRI, which is that it’s a method of recording brain activity. If it’s also stimulating the brain in some way at the same time, then it would make it hard to interpret those activations. In particular it would cast all the studies using MRI in depression into doubt.
So is it true? One can’t see any obvious flaws in the design. Assuming that the authors of these studies are right when they say that “patients could not distinguish the difference between the actual and sham MRI scan”, i.e. assuming that the blind was truly blind, then the methodology was sound. So we can say that the debate is still on debate for years: That’s really a fact.
Now let watch a video about MRI: