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?

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

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

If you are concerned about your heart s health, it is important for you to make some dietary modifications. Simple changes in your everyday diet may offer benefits, which help in preventing future heart problems. If you suffer from high blood pressure or high cholesterol or have atrial fibrillation.

Here are some tips regarding the best diet for protecting your heart:

Believe in the food hype: Having healthy meals is certainly beneficial and makes a big difference to your heart health. Consuming meals which contain vegetables, grains, low fat dairy and lean meat will allow you to live a longer and healthier life.
Avoid crash diets: A crash diet may be effective, if you want to fit in a dress within one month. However, for improving your heart health, undertaking different fad diets is not useful. Meals in which a certain type of nutrients such as carbohydrates or fats are ruled out are not beneficial as well. You should have a sensible approach towards your diet and focus on food products such as vegetables, whole grains and lean meat.
Do not overeat: Overeating will lead to weight gain and commonly, many people get heart attack after taking a big meal.
Eat less salt: You should consume less amount of salt in your diet and do not eat more than one teaspoon of salt a day. Avoid any food item which contains high amounts of sodium. Salt is responsible for increasing blood pressure.
Limit your intake of alcohol and caffeine: In case you suffer from atrial fibrillation, you should avoid caffeine and any other stimulant as they tend to trigger the symptoms. You must drink moderately as consuming more than one drink a day increases your risks of having heart problems.
Choose meat wisely: You should avoid red meat, which contains large amount of saturated fats as these are not good for the heart. You should choose the leanest cuts of meats and trim all fat from it. You should opt for cuts such as flank, rump roast, tenderloin and sirloin. Pork tenderloin, chicken and turkey breast are other alternatives.
Add fish to your diet: Fish is essential for improving your heart health. Try to avoid having deep fried fish and choose grilled fish or roasted fish, which are rich in Omega-3 fatty acids. Consume fishes like tuna, salmon, trout and sardines.
You should also add whole grains to your diet. They are effective in controlling blood sugar and lower the chances of diabetes. Hence, the risks of heart diseases are less if you do not have diabetes. Whole grains also help with weight loss, which is beneficial for the heart.

7 Tips for a Healthy Heart

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

The news of Sridevi's sudden and unexpected demise was a shock for the entire nation and left a number of questions in the minds of the people. However, there are multiple reasons which are under speculation and can be attributed to her death - cardiac arrest, heart attack and death due to accidental drowning. Usually, cardiac arrest and heart attack are two things which most people use interchangeably, however, there is a big difference between the two. 

Difference between cardiac arrest and heart attack: 
A cardiac arrest is far deadlier considering that it comes without a warning or any prior indication of a problem. Here, the heart just stops beating and immediate first-aid can make a lot of difference between life and death. Electrical shock is the best way to revive a patient and should be given within a few minutes of such an arrest. 

On the other hand, a person suffers a heart attack when there is a blockage in the artery which prevents the smooth flow of oxygen-rich blood from reaching the heart. It is important to note that unlike a cardiac arrest the signs of heart attack start slow and persists for long. 

A heart attack is one of the common causes of cardiac arrest, but not always it is the case. A cardiac arrest happens most commonly when the heart is receiving more than 300 impulses per minute or due to absent electrical impulses. In the first instance an electrical shock is a lifesaving technique and in the second, the patient can be treated with certain medications and a temporary pacemaker. 

Symptoms of cardiac arrest:
The symptoms of cardiac arrest are immediate and extreme.

A fainting spell or a sudden collapse
Loss of consciousness
No pulse or breathing 
Symptoms of a heart attack 

Discomfort along with chest pain 
Shortness of breath
Nausea with vomiting
Sweating
Headache and jawpain
Prevention of a cardiac arrest:
What makes this a deadly condition is that you cannot tell your risks of having one and therefore the next best thing to do is to lower your risks. 
The best way to do that is to:

Follow a diet that is balanced and nutritious
Alcohol should be consumed in moderation 
Quit smoking
Stay physically active
How can you prevent a heart attack?

Keep yourself fit and exercise regularly
Keep your cholesterol level under check 
Limit your alcohol intake 
If you are obese, control your weight
Intake a heart-friendly diet.
Now that the distinction is clear between the two, it is recommended that everyone should get themselves screened for potential heart problems on a regular basis. In case of a query or concern consult an expert and get your answers. 

Cardiac Arrest And Heart Attack - Understanding The Difference Between The Two!

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