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Cardiologist reveals ‘real cause of heart diseases’ isn't the elevation of cholesterol levels, but this hidden issue

Updated on: Jul 7, 2025, 08:57:42 IST
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Dr Bhojraj highlighted that what really causes heart disease isn't so much the elevation of cholesterol levels, but rather the circulating LDL particles. (Unsplash)
Dr Bhojraj highlighted that what really causes heart disease isn't so much the elevation of cholesterol levels, but rather the circulating LDL particles. (Unsplash)

Cardiologist Dr Bhojraj highlights that high levels of LDL cholesterol contribute to heart disease by causing arterial buildup. Here's what he explained.

Heart disease among young people has become a growing cause of concern over the past few years. According to the Centres for Disease Control and Prevention (CDC), one person dies every 33 seconds from cardiovascular disease (CVDs). In 2022, 702,880 people died from heart disease. That's the equivalent of 1 in every 5 deaths. WHO (World Health Organisation) reports that CVDs are the leading cause of death globally, taking an estimated 17.9 million lives each year.

Also Read | Cardiologist shares 1 daily habit to lower your heart disease risk by nearly 50%: 'Longevity doesn't require gym'

This makes taking care of our heart an important part of our daily life, whether it be through diet, exercise or lifestyle changes. In a post shared on June 25, Dr Sanjay Bhojraj, MD, and interventional cardiologist, talked about the real cause of heart diseases. Let's learn what the expert said:

What is the cause of heart disease?

Dr Bhojraj highlighted that what really causes heart disease isn't so much the elevation of cholesterol levels, but rather the circulating LDL particles, also known as low-density lipoproteins, in our body. “It’s not about how much LDL you have. It’s what damages it,” he wrote in the caption.

Now, what is LDL? According to MedlinePlus, LDL is sometimes called the 'bad' cholesterol because a high LDL level leads to a buildup of cholesterol in your arteries. Meanwhile, HDL stands for high-density lipoproteins.

The cardiologist shared, “These circulating cholesterol particles can become damaged, which is associated with something we call a damage-associated molecular pattern, or DAMP. This process activates the immune system.” And this leads to an increased chance of heart disease.

Tests to add to your annual health check-up to spot problems

In an interview with HT Lifestyle, Dr Rajeev Vashisth, senior consultant, cardiothoracic and cardiac surgeon (vascular surgery), HCG Hospitals, Bhavnagar, talked about the tests people are missing in their annual health check-up and stressed that the ECG (electrocardiogram) can’t see everything.

These are the tests that should all be part of a more thorough cardiovascular risk assessment:

  • A lipid profile
  • Fasting blood sugar or HbA1c
  • Blood pressure monitoring
  • BMI/waist circumference measurement
  • Occasionally, an echocardiogram or stress test should be performed, particularly for people with a family history or symptoms like dyspnoea or chest pain.

Note to readers: This article is for informational purposes only and not a substitute for professional medical advice. Always seek the advice of your doctor with any questions about a medical condition.

  • Krishna Pallavi Priya
    ABOUT THE AUTHOR
    Krishna Pallavi Priya

    Krishna Priya Pallavi is a journalist with over 9 years of experience, covering health, fashion, pop culture, travel, wellness, entertainment, festivals, mental health, art, decor, fitness, and sex and relationships. She is an alumna of the Indian Institute of Mass Communication (IIMC), Dhenkanal, and holds an undergraduate degree in Journalism and Mass Communication from Guru Gobind Singh Indraprastha University, Delhi. Her strong academic foundation informs her analytical and detail-oriented approach to storytelling, helping her uncover stories where none seem to exist. Before joining Hindustan Times, Pallavi worked with some of India’s leading media organisations. She spent close to three years at India Today, where she honed her newsroom skills and developed a sharp editorial sensibility. She also worked for over a year and a half at Vagabomb, ScoopWhoop’s feminist digital platform, where she explored stories through a gender-sensitive, socially aware lens. Pallavi has a deep interest in global fashion trends and international fashion seasons, and enjoys interviewing celebrities and tracking pop culture movements—interests that frequently translate into engaging, reader-friendly stories. Alongside lifestyle and entertainment, she has a keen eye for impactful health and wellness journalism, regularly interacting with doctors, designers, and digital content creators to bring nuance and credibility to her work. Born and raised in Haryana, Pallavi remains deeply connected to her ancestral roots in Odisha. Her ability to spot fresh angles brings curiosity and depth to stories she pursues. When not chasing deadlines, she enjoys spending time with her dog, planning her next vacation, reading, running new trails, and discovering new destinations.Read More

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