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

Beetroots are packed with nutrients and can be eaten raw, pickled or cooked. Beetroots can even be juiced. It has been used in a number of sweet and savoury recipes. When it comes to beetroots, the root as well as the leaf can be eaten. Here are a few great reasons why you should eat beetroot.

    It's good for the heart: Beetroots are rich in nitrates. This helps relax the arteries and reduces blood pressure. Being rich in fiber and antioxidants enables beetroots to prevent plaque formation in arteries. The antioxidants in beetroots also prevent bad cholesterol from being deposited on the artery walls. Thus it protects against heart attacks and strokes.
    It helps fight diseases: Beetroots are said to boost immunity and fight a number of diseases including cancer, Alzheimer's and liver disorders. Beetroot is rich in betanin that expels cancer triggering agents and prevents the development of tumours on both the skin and liver. It is also said to protect a person from breast cancer. It also helps detoxify the body.
    It helps build strong bones and teeth: Beetroots are rich in silica. This silica is a crucial component required for healthy bones and teeth. Along with silica, beetroots are also rich in magnesium, vitamin C and folate. Beetroots also help prevent osteoporosis.
    It helps control blood sugar: Beetroots are naturally sweet, but can help control blood sugar and help fight diabetes. Beetroots are also rich in soluble fibers that can help regulate blood sugar levels. Drinking beetroot juice thrice a week is the best way to use beetroots to stabilize glucose levels in the body.
    It aids in weight management: Beetroots have a very low calorific value and are rich in fiber. This makes it an effective tool in weight loss. It also helps rid the body of toxins and excess water.
    It slows the aging process: Beetroot adds a glow to your skin. It helps cleanse the blood of toxins and thus makes skin healthier. The anti oxidants in beetroot reduce free radicals and thus slow down the aging process. This pink vegetable also has anti septic and anti inflammatory properties that help heal skin.
    It makes hair healthier: Carotenoids in beetroot give hair a lustrous shine and help fight hair fall. Beetroots are also rich in protein, phosphorus and a number of other vitamin and minerals essential to healthy hair. It helps improve blood circulation in the scalp and helps remove dead skin and excessive oil from the scalp.

Beet Root: Chukandar - How and Why You Should Eat It?

For long, there have been campaigns and discussions about the harmful effects and diseases associated with alcohol consumption. In most cases, it is not the alcohol, but the quantity consumed that affects a person. Limited consumption of alcohol can, in fact, work to your advantage. Alcohol, when consumed in moderation, helps to avert, check or improve many medical conditions and health ailments.

Deal with common cold effectively: According to research, the antioxidants present in wine helps to fight common cold better. Limited intake of alcohol, red wine to be precise (~1-2 glasses per day), can, thus, help to reduce the instances of common cold significantly.
Weight loss made easy: Studies conducted by the Oregon State University suggest that certain varieties red wine (the Red Muscadine Wine) can play a pivotal role in weight reduction. The Red Muscadine, a variety of wine grapes used to make red wine contains ellagic acid. It is this ellagic acid that helps to cease or slow down the growth and development of the fat cells. Red wine also helps to manage fatty liver effectively.
Keep cardiovascular diseases at bay: The high-density lipoprotein (HDL), also known as the Good Cholesterol is indeed good for the body. It acts as a shield, keeping the heart hale and hearty. Moderate alcohol consumption helps to elevate the level of HDL. One of the main reasons attributing to heart attacks are the small blood clots that block the arteries of the brain, heart, and neck. Alcohol (limited intake) has been able to put a check in the formation of such blood clots.
Reduced instances of cognitive impairment: Reports suggest that people who consume alcohol within limits are less likely to develop dementia and Alzheimer's disease. Moderate consumption tends to make the brain cells fit and more active, thus, enabling the cells to deal with stress and other related factors.
A little wine for a better libido: Limited consumption of wine is good for a better sexual life. Research indicate that the antioxidants present in wine act as a catalyst, resulting in an improved libido (lowers the incidences of erectile dysfunction in men). A little wine can work wonders for women as well (increasing their sexual desires and feelings).
Enjoy a diabetes-free life: Type 2 Diabetes and the associated ailments and complications can make life miserable. However, people who consume a small quantity of alcohol (preferably 1-2 glasses per day) are at a lower risk of developing diabetes (Type 2). A path-breaking finding indeed!
People with moderate alcohol consumption are also at a lower risk of developing gallstones. The high silicone content in beer helps to strengthen the bones, but only when consumed within limits. Beer is also rich in calcium, magnesium, and vitamins (thiamine, riboflavin).

Alcohol In Controlled Quantity - Can It Be Good For You?

Bradycardia is a condition which in basic terms means slow beating of the heart. In most cases, the typical rate is 60 to 100 beats in a minute when the person is at rest. In case your heart beats less than 60 times in a minute, then it is slower than normal. But a slow heart rate is not always a health concern even though sometimes it could indicate issues with of the heart.

What could bradycardia mean?
Some people with slow heart rate or bradycardia tend to be very fit, and they have no underlying health issues. Athletes and healthy young adults often have a heart rate lower than 60. But in others, bradycardia indicates that the natural pacemaker of the heart is not working well, or the electrical pathways have been disrupted. In severe forms of the problem, the heart may beat so slowly that it fails to pump adequate blood for meeting the needs of the body. This may show some symptoms and could be fatally dangerous.

What are the causes of bradycardia?
There are various causes of bradycardia, and some of them include:

Alterations in the heart which results from aging
Health conditions that slow down the electrical impulse through the heart. This may include electrolyte imbalance, low thyroid levels, and others.
Diseases which may disrupt the electrical system of the heart including heart attack, coronary artery disease, and myocarditis.
Certain medications that are used for treating heart problems like high blood pressure or hypertension, arrhythmia, and beta-blockers, and digoxin.
What are the symptoms of bradycardia?
When a person has very slow heart rate, he or she may experience lightheadedness or dizziness, feeling short of breath, having difficulties in doing normal activities or exercising, having chest pain, feeling tired and fatigued. In some cases, it is seen that the person may have palpitations, feeling confused, trouble in concentrating and fainting.

What s worse, some people don t have any symptoms at all, or their symptoms are so negligible that they think they are caused just because of aging. The best way to understand whether you have this problem is to take the pulse, and in case, it is slow or uneven, you must talk to a doctor.

How is bradycardia diagnosed and treated?
Bradycardia tends to come and go from time to time, and therefore, a standard EKG is not always able to detect it. A standard ambulatory electrocardiogram is used for detecting the condition, and sometimes, blood tests are also necessary.

The treatment of bradycardia is entirely dependent on the cause of the problem and its symptoms. It is worthy of mention here that in case the problem is not causing any symptoms, then they would not be treated under usual circumstances.

An Effective Guide To Bradycardia!

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

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