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

6 Things that make you prone to heart diseases the most

Every year almost 2 lakh people opt for heart surgeries in India; and as of 2015 there were about 30 million people in the country suffered from heart diseases. There are several factors that increase the threat of heart diseases, among which some can be controlled and some can't. On one hand, where factors like being a man, old age, being a woman in the post-menopausal phase of life, and a family history of heart diseases are beyond your control; other risks can be minimized by making some lifestyle changes. 

Although natural processes like ageing, which narrow down your arteries and weaken the heart muscles increase the risk of heart diseases here are 7 factors, which dramatically increase your chances of getting heart diseases, while you are still young.

1. Genetic Factors: 
If someone in your family is already suffering or has suffered from a heart disease, especially at a young age, it increases your probability of getting a cardiovascular disease.

2. High Levels of Cholesterol in the Blood:
Chances of formation of plaque on the inner walls of the arteries increase with increasing levels of bad (LDL) cholesterol in the blood. This may be a major cause of the heart disease, atherosclerosis, which happens due to accumulation of fatty substances inside the arteries. 

3. Smoking:
Smoking causes constriction of your blood vessels and may damage their inner lining due to the effect of nicotine on them. This can put you at high risk of developing atherosclerosis. Moreover, studies suggest that people who smoke are twice as prone to heart attacks in comparison to non-smokers.

4. Hypertension:
If your blood pressure level is usually above normal, it can give rise to thickened arteries, which, in turn, can reduce the passage for the flow of blood through the vessels. This damages your heart health to a large extent and makes you prone to heart diseases.

5. Diabetes:
Uncontrolled diabetes increases your chances of getting a heart attack, especially because diabetes almost goes hand in hand with diabetes and obesity, which are risk factors of heart diseases.

6. Stress:
If you fail to keep your levels of stress and anger in check, they may have a damaging effect on your arteries. This can make way for strokes and heart attacks in the future.



The 6 Things that Make You Prone to Heart Diseases the Most

A heart attack does not always have obvious symptoms, such as pain in your chest, shortness of breath and cold sweats. In fact, a heart attack can actually happen without a person knowing it. This condition is known as a  silent heart attack , medically known as  silent ischemia , occurring due to the shortage of oxygen supply to the heart muscle. The causes of a silent heart attack are similar to that of a heart attack. 

They include- 

Conditions like: 
Obesity or excess weight 
Diabetes 
High Blood pressure 
High cholesterol 
Heart Diseases 
Lack of exercise 
Age, usually above 65 
Consumption of tobacco or smoking 
High consumption of alcohol 
A silent cardiac arrest makes one more vulnerable to another heart attack that could be fatal. Diagnosis: The only method to diagnose if you had a silent heart attack is through imaging tests, such as echocardiogram, electrocardiogram, Holter Monitoring or others. These tests can show certain changes which might be indicative of a heart attack. An analysis of one s overall health and the symptoms can aid in deciding whether few more tests are required. 

How would you prevent a silent heart attack? 
1.   Get your cholesterol and blood pressure count tested regularly. 
2.   Refrain from smoking. 
3.   Get your VO2 max checked regularly. 
4.   Live a healthy lifestyle: Refrain from smoking and excessive alcohol consumption; exercise daily, eat healthy. 
5.   Control high blood pressure, cholesterol, and diabetes 
6.   Be aware of your body and call on a doctor if you feel there s anything which is bothering you. 

If you wish to discuss about any specific problem, you can consult a doctor and ask a free question.

Know Everything About Silent Heart Attacks

Foods that cleanse the arteries naturally
 
Arteries are the blood vessels that carry oxygen to various parts of the body. Proper functioning of the arteries is directly related to well functioning organs as without oxygen, no organ can work well. There are many reasons due to which blockages and waste materials are stuck in these blood vessels. It is essential to clean them on regular basis, there are several food items available easily that cleanse the arteries naturally!

1. Tea- green tea is known popularly as an antioxidant that keeps your health and weight in check. But it is also a very strong cleanser of your arteries as well. Black tea too, one that has flavonoids in good proportions is also considered as an excellent cleanser of the artery.
2. Sesame seeds- sesame seeds have natural cardioprotective substances that are not only good for the artery but are very beneficial for absolute heart health. Sesame is majorly known for preventing the occurrence of atherosclerosis. Apart from that, sesame helps in cleaning all blood vessels.
3. Turmeric- any blockage or damage to the artery is immediately addressed by the turmeric that we consume regularly. It cures the damages almost immediately, preventing any aggravation or infection. Including turmeric in good proportions in daily diet is considered as a complete option to tackle any problems to the arteries.
4. Fruits- fruits are extremely beneficial both for the cardiovascular and blood health. Fibrous fruits especially are related to the arteries. Researchers suggest that having fibrous fruits first up in the morning, on an empty stomach ensures that all the arteries are cleaned and its functions are proceeding in the right manner.
5. Olive oil- fatty acids like omega-3 and omega-6 present in olive oil are excellent plaque removers. Consuming olive oil increases the omega substances in the body, so when something is about to harm the artery, they intervene and cleanse it completely.


Foods That Cleanse The Arteries Naturally

Heart Care Tips For a Heart Patient

A heart patient has to always live with caution. This World Heart Day, let us understand what it takes to keep our heart in good health. In fact, by following certain rules, one can lead a smooth life despite being a heart patient.
The major risk factors of heart diseases are smoking, high blood pressure, diabetes, physical inactivity, obesity, and high cholesterol. In addition to these, there are factors which add to the heart condition. They are stress, alcohol, sleep apnea and C - reactive protein.

Food and exercise play a major role in the well-being of a heart patient. It is important to engage in exercises as prescribed by your heart specialist. Follow these dos and don’ts with respect to food.

Say YES To:

1. Poultry and fish for the requirement Omega 3 and Protein
2. Raw nuts, flax seeds, avocados, olive oil, fish oils etc which make up the body's need of healthy fats.
3. Fruits and vegetables for the body's nutrient needs.
4. Whole grains and legumes which provide energy and fiber to the body.
5. Protein and calcium which come from unsweetened yoghurt, egg whites, low-fat/non-fat cheese and skimmed or double toned milk.

Say NO To:

1. Fried foods, cakes and pastries, since they have trans-fats or other harmful fats.
2. Foods high in sodium and sugar, especially packaged goods.
3. Rice, pasta, white breads, sugary foods.
4. Sausage, bacon and red meat.
5. Full cream milk, whole milk cheese and sweetened yoghurt.

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 Heart Care In Your Hands: World Heart Day Special Tips

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