- Shortness of breath (dyspnea) can be caused by heart, lung, or lifestyle-related issues.
- If you feel breathless even with light activity or while resting, it may indicate heart failure or coronary artery disease.
- Early evaluation by a cardiologist can detect hidden heart problems before they become severe.
- Dr. Sunny Malhotra provides expert cardiology care in Brampton, Mississauga, and Milton for patients with unexplained shortness of breath.
- Proper diagnosis through testing such as echocardiogram, stress test, or ECG helps guide personalized treatment and restore quality of life.
Feeling Breathless? It Could Be More Than Just Being Out of Shape
Shortness of breath is one of those symptoms people often ignore. You might think it’s due to being tired, overweight, or stressed — but if it’s persistent or worsening, it could be a warning sign from your heart.
When your heart isn’t pumping efficiently, your body doesn’t get enough oxygenated blood. This leads to that tight, suffocating feeling in your chest when walking up stairs, doing chores, or even while resting.
For residents in Brampton, Mississauga, and Milton, Dr. Sunny Malhotra helps patients identify whether shortness of breath is related to heart disease, heart failure, valve disorders, or arrhythmias — and provides targeted treatments to restore heart function and confidence in daily life.
Common Cardiac Causes of Shortness of Breath
💔 1. Heart Failure
When the heart’s pumping ability weakens, fluid can back up into the lungs — causing breathlessness, fatigue, and swelling in the legs.
Left untreated, heart failure can progress silently, but with early care, patients often live active, fulfilling lives.
❤️ 2. Coronary Artery Disease (CAD)
If arteries supplying your heart become narrowed by cholesterol buildup, your heart struggles to get enough oxygen during exertion.
You may feel breathless, dizzy, or experience chest tightness (angina). CAD is one of the most common — and treatable — causes of shortness of breath in adults.
⚙️ 3. Valvular Heart Disease
Leaky or narrowed heart valves can cause the heart to work overtime. This can lead to fatigue, palpitations, and breathlessness, especially during exertion.
⚡ 4. Arrhythmias
An irregular or rapid heartbeat can make your heart inefficient at pumping blood, causing oxygen levels to drop. Symptoms often include shortness of breath, fluttering, or lightheadedness.
🫁 5. Other Causes
Sometimes, shortness of breath results from anemia, lung conditions (like asthma or COPD), or anxiety, but a cardiology evaluation helps rule out heart disease as the primary cause.
🚨 When Should You See a Cardiologist?
You should seek prompt medical attention if you experience:
- Shortness of breath with minimal activity
- Trouble breathing when lying flat
- Swelling in your ankles or feet
- Chest discomfort or pain
- Dizziness or fainting spells
These symptoms can point to serious cardiovascular conditions that are manageable — but only if diagnosed early.
Dr. Sunny Malhotra uses advanced diagnostic testing, including:
- Echocardiogram (heart ultrasound)
- Electrocardiogram (ECG)
- Stress testing
- Cardiac CT or MRI
These help determine whether your breathlessness is caused by reduced heart function, blocked arteries, or structural abnormalities.
💬 The Importance of Early Cardiology Care
Ignoring breathlessness can lead to worsening heart disease, hospitalizations, or even cardiac emergencies. Early detection can make all the difference.
With modern noninvasive tests and personalized heart management plans, Dr. Malhotra helps patients regain their stamina, improve breathing, and restore energy.
Whether you live in Brampton, Mississauga, or Milton, scheduling a heart evaluation is the first step toward peace of mind — and better health.
🩺 Conclusion
Shortness of breath is not something to dismiss as “just getting older.” It’s one of the most common — yet overlooked — signs of cardiovascular disease.
If you’ve noticed yourself slowing down, feeling winded more easily, or waking up breathless at night, it’s time to talk to Dr. Sunny Malhotra, a trusted cardiologist serving Brampton, Mississauga, and Milton.
A single visit can uncover the cause, guide treatment, and help you breathe easier again.
❓ FAQ: Shortness of Breath and Heart Health
Q1. How do I know if my shortness of breath is from my heart or lungs?
If you feel breathless during exertion or lying flat, and it improves when you sit up, it’s often heart-related. Lung causes usually involve coughing or wheezing.
Q2. Can anxiety cause shortness of breath?
Yes — anxiety can mimic heart symptoms. However, it’s crucial to rule out heart disease first.
Q3. What tests can diagnose heart-related shortness of breath?
Your cardiologist may order an ECG, echocardiogram, or stress test to assess heart function.
Q4. When should I see a cardiologist?
If breathlessness interferes with your daily life, occurs suddenly, or comes with chest pain, dizziness, or swelling — seek care immediately.
Q5. Does shortness of breath mean heart failure?
Not always — but it’s one of the key signs. An evaluation by Dr. Malhotra can determine the true cause and start treatment early.



