ALFATH: The Heart

The Organ That Never Stops

The silent pulse of life that beats within each of us

Introduction

❤️ The heart… that small muscle we never see, yet it holds the entire secret of life. It beats inside us without stopping, pumping blood to every cell, granting the body its energy and ability to continue. Despite its small size, its importance surpasses every other organ; it is the main engine upon which humans depend in every moment of their lives. In this topic, we will learn about the heart's location and shape, its amazing mechanism of action, the most important diseases that may affect it, and how we can keep it strong and pulsating with life.

First: The Heart's Location and Shape

Heart Location

The heart is located almost in the middle of the thoracic cage between the lungs, but it tilts slightly towards the left side of the chest, which is why humans often feel its pulse on this side.

The heart resides within what is called the mediastinal cavity (mediastinum), surrounded by a protective membrane called the pericardium, which helps fix it in place and protects it from friction with adjacent organs.

Heart Shape

The heart takes on a conical or oblique oval shape. Its upper part is wider and is called the base, while the lower part is narrower and is called the apex.

Its size is usually close to the size of a fist, and its weight in an adult human is approximately 250 to 350 grams, with a slight difference between males and females.

The heart features four main cavities divided into:

• The atria in the upper part (right and left)
• The ventricles in the lower part (right and left)

This structure helps it perform its primary task of pumping blood to all parts of the body efficiently and regularly

Second: The Heart's Mechanism of Action

The heart functions as a delicate muscular pump that regulates blood movement within the body, through a continuous cycle called the cardiac cycle. This cycle is based on two main phases:

Systole Phase (Contraction)

In this phase, the heart muscle contracts, especially the ventricles, to push blood out of the heart:

• The right ventricle pumps deoxygenated blood to the lungs via the pulmonary artery, to be replenished with oxygen.
• The left ventricle pumps oxygen-rich blood to all parts of the body via the aorta.

Diastole Phase (Relaxation)

The heart muscle relaxes, allowing valves to open and blood to return to its chambers:

• Blood from the body enters the right atrium.
• Oxygenated blood from the lungs enters the left atrium.

Blood subsequently moves from the atria to the ventricles in preparation for a new pump.

Heart Valves and Their Role

To ensure blood flows in one direction without backflow, the cardiac cycle contains four valves:

• The Mitral Valve
• The Tricuspid Valve
• The Aortic Valve
• The Pulmonary Valve

These valves open and close precisely during each cycle, maintaining regular blood flow and preventing any abnormal leakage or backflow.

Third: Coronary Arteries

Coronary arteries are like the arteries of life for the heart muscle itself; they are responsible for supplying the heart with the blood rich in oxygen and nutrients it needs to perform its task of pumping blood to all parts of the body. Although the heart pumps blood to all organs, it does not receive its nourishment directly from the blood inside its chambers; it relies entirely on these special arteries.

Types of Coronary Arteries

There are two main coronary arteries that branch from the base of the aorta:

Left Coronary Artery (LCA)

It divides into two important branches:

• Left Anterior Descending (LAD) branch: Supplies the front part of the heart and the left ventricle.
• Circumflex branch: Supplies the lateral and posterior sides of the heart.

Right Coronary Artery (RCA)

Supplies the right side of the heart, including the right atrium and right ventricle, in addition to part of the heart's electrical system responsible for regulating the heartbeat.

Importance of Coronary Arteries

The importance of these arteries lies in:

• Providing the heart muscle with the energy needed for continuous contraction.
• Maintaining regular heartbeat by supplying the electrical nodes.
• Ensuring the continuity of blood circulation without strain or muscular weakness.

Problems Affecting Coronary Arteries

When these arteries narrow or become blocked due to the accumulation of fats or calcified deposits, serious problems occur, most notably:

• Angina Pectoris: Pain that occurs when there is a lack of oxygen reaching the heart.
• Myocardial Infarction (Heart Attack): Complete blockage leading to the death of part of the heart muscle.
• Heart Failure: The heart's reduced ability to pump blood efficiently.

Factors That Increase the Risk of Coronary Artery Blockage

The most important contributing factors include:

Smoking • High Cholesterol • Obesity • Physical Inactivity • High Blood Pressure • Diabetes • Chronic Stress

Fourth: Common Heart Diseases

Heart diseases are among the most prevalent diseases worldwide, directly affecting the heart's ability to pump blood efficiently. These diseases vary in their causes and symptoms, and the most prominent include:

Coronary Artery Disease (Blockage of Coronary Arteries)

Occurs due to the accumulation of fats and deposits inside the coronary arteries responsible for supplying the heart muscle with blood. This blockage leads to a reduced amount of oxygen reaching the heart, which may cause:

• Angina Pectoris
• Heart Attack

Smoking, high cholesterol, and obesity are among the most important contributing factors.

Heart Failure (Weakness of the Heart Muscle)

Occurs when the heart becomes unable to pump enough blood to meet the body's needs. Heart failure may result from:

• High blood pressure
• Repeated heart attacks
• Valvular diseases

Its symptoms include shortness of breath, leg swelling, and severe fatigue.

Arrhythmias (Heart Rhythm Disorders)

These are irregularities in the heart rate; it may become:

• Faster than normal (palpitations)
• Slower than normal
• Irregular such as Atrial Fibrillation

These disorders may affect the efficiency of blood pumping.

High Blood Pressure

Considered one of the most important factors that strain the heart in the long term. Increased pressure forces the heart to work harder to pump blood, leading to hypertrophy and weakening of its muscle over time.

Heart Valve Diseases

Include problems with the valves that regulate blood movement between the heart chambers, such as:

• Stenosis: The valve becomes narrow, making it difficult for blood to pass through.
• Regurgitation (Insufficiency): The valve does not close tightly, causing blood to leak backward.

These conditions may cause shortness of breath, swelling, or palpitations.

Fifth: How to Maintain Heart Health

Maintaining heart health is one of the most important steps to ensure a healthy life free from serious diseases, especially since the heart works continuously without stopping. This vital organ can be protected by adopting a set of healthy habits that support its functions and maintain the strength of its arteries and muscles.

Following a Healthy Diet

It is recommended to eat foods beneficial for heart health, such as:

Fresh vegetables and fruits Fish, especially those rich in Omega-3 Whole grains Unsalted nuts Healthy oils like olive oil

Conversely, one should reduce foods rich in saturated fats, sugars, and salt.

Regular Physical Activity

Exercise helps strengthen the heart muscle and improve blood circulation, while also reducing fats and cholesterol. It is preferable to practice:

• Walking
• Light jogging
• Swimming
• Cycling

For 30 minutes daily or five times a week.

Quitting Smoking

Smoking is one of the most dangerous factors leading to heart disease and artery blockage. Quitting it quickly and noticeably improves heart health.

Weight Control

Excess weight strains the heart and increases the risk of high blood pressure and diabetes, which are among the leading causes of heart disease. Therefore, reaching a healthy weight is essential.

Monitoring Blood Pressure, Sugar, and Cholesterol Levels

Regular check-ups help detect any problem early before it develops into serious heart diseases.

Controlling these factors protects the arteries and reduces the risk of clots.

Avoiding Stress and Psychological Pressure

Continuous stress affects heartbeats and increases blood pressure.

Stress can be alleviated through:

• Meditation
• Breathing exercises
• Good sleep
• Time management

Adequate Sleep

Getting 7–8 hours daily helps the body perform its natural functions and maintains regular heartbeats and blood pressure.

Daily Diet Plan for Maintaining Heart Health

Practical and balanced choices that help support heart health and regulate energy throughout the day.

First: Breakfast

A light and nutritious breakfast that helps activate the body and regulate blood sugar levels:

Suitable Options:

• Oatmeal with low-fat milk

  You can add a spoon of honey + fruit pieces like apple or berries.

• Brown bread + boiled egg

  A small plate of cucumber and tomatoes.

• Low-fat yogurt

  With two spoons of chia seeds or flax seeds (very beneficial for the heart).

• Cottage cheese or low-fat cheese sandwich

  With lettuce and cucumber.

• Plate of fresh fruits

  Such as: banana – apple – orange – grapes (in moderate quantities).

Second: Lunch

It is preferable to be balanced between protein, vegetables, and healthy carbohydrates:

Suitable Options:

• Grilled chicken breast

  With a large salad plate and brown rice or oats or brown bread.

• Grilled fish (salmon, sardines, or mackerel)

  Rich in Omega-3 fatty acids beneficial for the heart.

• Grilled vegetables
• Lentils or fava beans

  Without too much oil.

• Green salad

  With a small brown loaf.

• Vegetables cooked in a healthy way

  Such as zucchini, green beans, spinach.

• Light protein

  Such as tuna without oil or a boiled egg.

• Diet tuna salad

  Tuna in water + lemon + cucumber + corn + a little olive oil.

Third: Dinner

Should be light to protect the heart and avoid burdening the stomach before sleep.

Suitable Options:

• Green salad + low-fat yogurt

  You can add a spoon of flax seeds.

• Light vegetable or lentil soup

  Without added fats.

• Fruit plate

  Like apple or pear (prefer fruits low in sugar at night).

• Brown toast + cottage cheese or low-fat labneh
• Boiled egg + small salad plate

Light Snacks Between Meals

Choose only one when feeling hungry:

• A handful of unsalted nuts (almonds – walnuts).
• A piece of fruit.
• A cup of green tea without sugar.
• A small piece of dark chocolate (70%).

Important Tips While Following the Plan

• Use only one spoon of olive oil daily.
• Avoid fried foods and animal fats.
• Reduce salt as much as possible.
• Drink 6–8 glasses of water daily.
• Practice 30 minutes of walking daily.

Daily Exercise Plan for Maintaining Heart Health

A comprehensive program combining cardio, strength, and flexibility exercises to support heart and circulatory health.

1. Plan Duration

• Ideal Duration: 30–45 minutes daily
• Number of Days: 5–6 days a week
• Rest: One or two days for rest or light exercises like walking or relaxation exercises.

2. Exercise Division

First: Cardio Exercises

Help increase heart pumping efficiency and improve blood circulation:

• Brisk Walking: 20–30 minutes daily
• Light Jogging or Running: 15–20 minutes, 3–4 times a week
• Cycling: 20–30 minutes
• Swimming: 20–30 minutes, twice a week
• High-Intensity Interval Training (HIIT): 10–15 minutes, can be added gradually after acclimatization

Second: Muscle Strengthening Exercises

Strengthen muscles, improve metabolism, and indirectly protect the heart:

• Bodyweight Exercises: 2–3 times a week
• Push-ups: 2–3 sets × 10–15 repetitions
• Squats: 2–3 sets × 15 repetitions
• Abdominal Exercises (Plank/Crunches): 2–3 sets × 20–30 seconds
• Light Weight Resistance Exercises (Dumbbells): To gradually improve strength

Third: Flexibility and Relaxation Exercises

Maintain joints and reduce stress:

• Stretching Exercises: 5–10 minutes before and after exercise
• Yoga or Meditation: Once or twice a week to lower blood pressure and stress

3. Important Tips During Exercise

• Consult your doctor: Before starting any exercise plan if you have heart problems or high blood pressure.
• Start gradually: And increase exercise duration and intensity gradually.
• Ensure to drink water: Before, during, and after exercise.
• Wear appropriate shoes: To avoid joint injuries.
• Listen to your body: If you feel abnormal pain or severe shortness of breath, stop immediately.

Conclusion

After this presentation on the heart's location, its mechanism of action, and the most prominent diseases that may threaten it, it becomes clear to us that this small organ carries the greatest responsibility in the body. Heart health is not merely a medical matter, but rather a complete lifestyle that begins with human awareness of the importance of this vital engine and preserving it. Paying attention to diet, exercise, and avoiding harmful habits are all simple steps that make a big difference in protecting the heart and extending its lifespan. Let your heart be the first thing you care for… it is the pulse that gives your life its rhythm and meaning.