What Happens When the Electrical Activity of Your Heart Changes?

The heart's electrical conduction system plays a very important role in cardiovascular functioning. Also known as the atrioventricular (AV) conduction system, it regulates and controls the timing of the heartbeat.

How does the heart's electrical conduction system work?

There is a collection of electrical cells in the upper right atrium of the heart known as the sinoatrial (SA) node which acts as a natural pacemaker and generates electrical signals. These signals travel through specialized electrical pathways and stimulate the muscular walls of the heart to contract in a rhythmic manner. This gives rise to the heartbeat that pulses at a specific frequency every minute.

What is the effect of fluctuations in electrical activity on the heart?

The standard heart rate in human being ranges from 60 to 100 beats per minute. It slows down when a person sleeps and speeds up when one experiences physical or emotional heightening. These fluctuations are triggered by the brain or other systems of the body and signal the SA node to generate charges more rapidly or slowly. This leads to spikes and drops in the heart rate, depending on the nature of the situation.

What happens when there is dysfunction in the heart's electrical activity?

When the heart's electrical conduction system does not function properly, it leads to the occurrence of a condition known as arrhythmia or abnormal heart rhythm. This happens when electrical impulses are generated in an irregular manner and causes tachycardia (rapid heartbeats) or bradycardia (slow heartbeats) which takes place in jarring infrequent tempos.

What causes fluctuations in the heart's electrical activity?

There are various kinds of triggers that cause the heart rate to fluctuate. The exact nature of fluctuation also depends on the type of trigger. A few everyday examples of these causes are as follows:
- Exercise and strenuous physical activity increases electrical activity as the heart is required to beat faster so as to increase the supply of blood and oxygen to the muscles.
- Sleep and rest reduce heart rate as the body is not needed to exert itself.
- Release of adrenaline into the bloodstream causes the heart rate to spike up.



What Happens When the Electrical Activity of Your Heart Changes?

Symptoms of heart attack

A heart attack (myocardial infarction) should not be confused with stroke or heart failure. It is the condition which causes major damage to heart muscles because of sudden blockage by a blood clot. The most common symptom of heart attack happens to be chest pain. Heart failure and ventricular fibrillation are probably the most common complications in this condition. 

Clear symptoms of heart attack are:

1. Feeling vaguely ill - very vague feeling of illness is one symptom. You cannot really put your finger on what is wrong with you, but you do feel unwell.

2. Pain in left arm - pain in the arm, mainly the left arm is also one of the symptoms of an impending heart attack.

3. Sweating and heartburn - a lot of people have reported experiencing sweating, indigestion and heartburn before a heart attack. If you are sweating profusely and without any particular reasons, or having an unbearable heartburn, consult a medical specialist immediately.

4. Chest pain - feeling of fullness or tightness in the chest followed by pain is also a symptom of a heart attack. A lot of people have reported to ignore it; kindly don't.

5. Breathlessness - sudden shortness of breath and inability to do a lot of work at one point of time is not a good thing. This could be an indication of a heart attack.

6. Silent attack - the scariest of all is silent heart attack. At times, it comes with no symptoms at all. A person could be visibly physically fit, and suddenly have an attack. This usually happens with those who are suffering from diabetes mellitus.

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All You Need To Know About Heart Attack Symptoms

Heart attack, also known as myocardial infarction, is a severe condition where death of the heart muscle occurs because of the loss of blood supply. The blood loss usually happens because of the blockage of a coronary artery. Due to electrical instability, ventricular fibrillation is caused. Heart attacks may result in permanent brain damage or even death.

Symptoms of heart attack
There are many early symptoms and signs of heart attack, which should be recognized. Symptoms of heart attack vary from person to person. Here is a list of the primary heart attack symptoms:

Chest pain and discomfort:
Chest pain is the basic symptom of a heart attack and occurs in different forms. The chest pain has a pressure, fullness and squeezing sensation and starts from the center of the chest. The pain may go away and re-occur and may spread down to other limbs of the body.
Headache, toothache:
The chest pain occurring due to a heart attack spreads all over the body and the jaw. Even the back and head are affected. Sometimes pain in these regions is present while chest pain is absent.
Shortness of breath:
A gasping sensation or feeling shortness of breath is another common sign of a heart attack. Such breathing difficulty is called dyspnea. The shortness of breath occurs before or during the chest pain.
Nausea and vomiting:
The feeling of nausea or sickness in the stomach is another possible symptom. It is accompanied by belching or burping and sometimes, the heart attack is associated with a feeling of indigestion. Nausea is more common in women. Vomiting also occurs alongside nausea.
General epigastric discomfort:
In several cases, patients describe the pain of a heart attack as stomach pain. The pain is heavy and uncomfortable and persists for several minutes.
Sweating:
Perspiration or sweating occurs during a heart attack and the patient experiences cold sweat in avid amounts.

Emergency treatment for heart attack-
A person who has a heart attack should be rushed to a hospital.
Several tests are carried out to detect the cause of the attack. A 12 lead ekg is carried out to supervise electrical activity within the heart and detect the damaged areas.
Blood tests are undertaken to check enzymes and in certain cases, cardiac catheterization is required where pictures of the blood vessels are examined.
Emergency medicines are given to the patient to stop the formation of blood clots and include aspirin, heparin and other drugs. Other medicines are given for thrombolytic therapy, which dissolve already formed blood clots. They work to reduce the heart damage. Nitrates are also used.

A heart attack is a severe condition and must be attended to immediately. Emergency treatment procedures are essential to save the life of an affected person.

Heart Attack - Signs, Symptoms and Emergency Treatment

Cardiac or Heart Arrhythmia is a condition which results in disruption of heart s normal rhythm. Due to this, the heart may beat too quickly, too slowly or have an irregular rhythm. Though most of the arrhythmias are not harmful but at times they can have serious consequences, which might turn to be fatal. Differences in heart beats can lead to the restriction of blood, that gets pumped around the body, hence causing damage to the brain, heart and other organs of an individual.

Now we would take into account the causes behind the occurrence of this heart condition.

Causes

Interruption to the electrical impulses in any form that lets the heart to contract can result in arrhythmia. A person with a healthy heart should have a heart rate of anywhere between 60-100 beats per minute while the body is at rest.

There are a number of factors which can cause the heart to work inefficiently, which include:

Alcohol Consumption: If you are used to drinking alcohol varying from light to moderate, the chance of irregular heartbeat increases. A recent study has shown that with every drink consumed per day, the risk of atrial fibrillation increased by 8 percent. Men and women both are at equal risk for irregular heartbeat. Irregular heartbeat is caused because drinking leads to damage of the cells, which in turn leads to causing damage in small areas of fibrous tissue within the heart.

Anxiety: Arrhythmia from anxiety is when the heart feels like something happened due to which it tries to overcompensate and beat quickly. This leads to heart skipping a beat, getting squeezed or undergoing heartbeats at a rapid pace.

Excessive Cosumption of Coffee: Caffeine is a stimulant and tends to speed up heart rate, so consuming too much coffee can lead to the problem of arrhythmia.

Deficiency of Magnesium and Potassium: Magnesium and Potassium deficiencies in one s body can cause Arrhythmia. The deficiencies can be caused due to less intake of citrus fruits and vegetables like potatoes, kiwi, papaya etc.

Symptoms

Arrhythmia can produce a broad range of symptoms which affect the proper functioning of heart. Some of the most serious symptoms are:

Fatigue: If you feel that you are getting fatigued quite easily, then it s a clear symptom of arrhythmia.

Dizziness: A sense of dizziness creeps in when you are having the problem of irregular heartbeat.

Lightheadedness: Feeling light on the head is another symptom of Cardiac Arrhythmia, as there is fluctuation in the amount of blood that reaches the brain through the heart.

Treatment Options

Problem of irregular heartbeats, especially if it s on the slower side, can be solved through the placement of certain devices like pacemaker, which can speed up one s heart rate.
Faster heartbeats can be treated through blood-thinning medications, which would help keep threatening blood clots from getting formed.
Doctors can even go for Catheter ablation, wherein they would thread one or more catheters through the blood vessels of one s heart. Electrodes at the catheter tips can make use of extreme heat, cold or radiofrequency energy to damage a small sport of heart tissue and create an electrical block along the path, that s causing one s arrhythmia.

Cardiac Arrhythmia - Factors That Can Lead To It!

The humble, easily available banana is not as humble when it comes to its contribution to your health. And once you learn how much good it can do to your body, you will be compelled to add it to your daily diet. This god of a fruit protects you from innumerable diseases, keeps your hair, heart and head well as well as fights chronic diseases - and the list has just begun. 

Here are just 15 reasons for you to have a banana every day-

1) This fruit is high in potassium and low in salt, it is your protective shield against blood pressure, heart attack, and stroke.

2) Iron rich banana is extremely good for anemic people.

3) The calcium-rich bananas are excellent for your bones and help in increasing bone density.

4) For people who exercise, bananas are an energy booster and sustain your blood sugar as well as protect against muscle cramps post workouts or leg cramps.

5) Bananas help beat depression due to high levels of tryptophan, which is converted into serotonin: the feel-good brain neurotransmitter.

6) It also enhances your moods and relieves PMS symptoms as well as stress levels in body and mind.

7) Due to high levels of vitamin B-6, bananas produce white blood cells and help in building immunity as well as strengthen nervous systems.

8) Weightloss - If you swap your junk foods with bananas, you might be inching towards losing weight. As an added bonus your energy will be become more steady and consistent.

9) Improve your mood and reduce PMS symptoms by eating a banana, which regulates blood sugar and produces stress-relieving relaxation.

10) Bananas reduce swelling, protect against type II diabetes, aid weight loss, strengthen the nervous system, and help with the production of white blood cells, all due to high levels of vitamin B-6.

11) Extremely caring about your stomach, Banana not only soothes your digestive tract to restore lost electrolytes after diarrhoea, it also helps in relieving constipation due to ts high fibre content.

12) Rich in pectin, bananas aid digestion and gently chelate toxins and heavy metals from the body.

13) Fever too? A banana can bring down your body temperature to cool your temperature off.

14) Bananas make you smarter! It makes you very alert. The high levels of potassium help your memory as well. Think about it before an exam.

15) Smoke? High levels of B-vitamins as well as potassium and magnesium in the fruit, help in speedy recovery from the effects of withdrawal.



15 Reasons Why Banana is Healthier Than Apple

5 Signs of an Unhealthy Heart

The heart is a muscular organ that helps to pump blood through the circulatory system by periodic contractions and relaxations. The heart is one of the most important organs of the body so much so that a single cardiac arrest or a heart attack can lead to fatal consequences. Even so, a heart attack is one of the most leading causes of death in the country. But there are some earlier symptoms that could alert you ahead of time. The following are signs of an unhealthy heart:

1. Sexual problems

Erectile dysfunction (ED) is one of the most predictable reasons for cardiovascular conditions. Today, patients who are diagnosed with ED are also considered as cardiovascular patients. This is because the heart is supposedly not able to pump enough blood to the genital area. In case of women, reduced blood flow can hamper arousal and delay orgasms.

2. Snoring and sleep apnea

If one snores loudly enough to prevent their partner's from sleeping or resort to using earplugs, one may be at a risk of having a weak heart. Restricted breathing during sleep is connected with a host of cardiovascular diseases. Sleep apnea, a condition where breathing stops for a brief span of time, is linked with higher cardiovascular risks.

3. Swollen, sore and bleeding gums

Swollen and bleeding gums are not only symptoms of dental conditions but also of cardiovascular difficulties. Medical experts believe poor circulation of blood arises due to underlying heart conditions. Recent studies are focusing on bacteria that are believed to cause gum disease as well as plaque inside the arteries of the heart.

4. Heart Arrhythmia

Irregular heartbeat or heart arrhythmia is a common sign of a weak heart. It is characterized by both fast and slow beating of the heart. Restricted blood flow to the heart strains the electrical signals that maintain the normal beating of the heart. This is one of the common causes of coronary artery diseases.

5. Chest pain

One of the most apparent signs of coronary artery diseases is chest pain. The cause of the sharp, clutching pain in your chest can be build-up of plaque in the arteries, which could lead to fatal consequences.



5 Signs of an Unhealthy Heart

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