Cardiologists challenge the obsession with BMI, reveal why being ‘thin on the outside’ can mask healthy ageing and longevity: ‘Weight is easy to measure’ | Health News

Cardiologists challenge the obsession with BMI, reveal why being ‘thin on the outside’ can mask healthy ageing and longevity: ‘Weight is easy to measure’ | Health News


4 min learnNew DelhiMar 3, 2026 07:00 PM IST

Specializing in physique weight alone can create a slim understanding of what it really means to age well and maintain long-term health. Integrative heart specialist Sanjay Bhojraj, with over twenty years of expertise, not too long ago highlighted this whereas discussing longevity targets in an Instagram submit. He wrote, “Weight is straightforward to measure. It’s additionally incomplete.” 

He emphasised that the broader objective needs to be metabolic well being reasonably than simply weight administration. “If longevity is the objective, metabolic well being is the true goal. The dimensions tells you mass. It doesn’t let you know how your physique is functioning, adapting, or ageing,” he cautioned. Which means that even people who fall inside a so-called wholesome weight vary might nonetheless face underlying dangers if different well being markers should not in stability.

To get a clearer image of long-term well being, he suggested monitoring key indicators akin to resting coronary heart fee, blood strain, fasting glucose and muscle mass. Monitoring these markers commonly can supply deeper perception into how effectively the physique operates and the way it might carry out within the years forward. As he famous, “These metrics reveal how effectively your system operates and the way properly it can carry out over time.” The thought is to not dismiss weight solely, however to position it inside a wider framework of measurable components that collectively form longevity and high quality of life.

Why counting on physique weight or BMI can create a deceptive image of somebody’s long-term well being and longevity

Dr CM Nagesh, medical director and senior marketing consultant heart specialist at Cardea Tremendous Speciality Hospital, tells indianexpress.com, “Relying strictly on weight or Physique Mass Index (BMI) is clinically flawed as a result of these metrics can’t distinguish between muscle mass, bone density, and adipose tissue (fats).”

Dr Nagesh provides that an individual with excessive muscle mass may be categorised as “chubby” by BMI requirements regardless of having optimum cardiovascular well being. Conversely, somebody with a “regular” BMI would possibly undergo from normal-weight weight problems—usually known as “skinny outdoors, fats inside” (TOFI). On this state, a person carries extra visceral fats round their inner organs. This deep fats secretes inflammatory cytokines and considerably will increase the danger of insulin resistance, coronary heart illness, and early mortality. The dimensions solely measures gravitational pull, not metabolic operate. True longevity is dictated by tissue high quality and metabolic effectivity, neither of which is captured by merely weighing a affected person.

How do markers like resting coronary heart fee, blood strain, fasting glucose and muscle mass work collectively?

These markers collectively map out the true effectivity of your cardiovascular and endocrine methods. “Resting coronary heart fee and blood strain present a direct window into your endothelial operate (the well being of your blood vessel linings) and autonomic nervous system. Low values usually point out a powerful coronary heart and versatile arteries,” notes Dr Nagesh. 

Fasting glucose reveals your mobile insulin sensitivity. Whenever you consider muscle mass, the scientific image is full. Skeletal muscle isn’t only for motion; it’s an lively endocrine organ and the physique’s largest “metabolic sink.” Dr Nagesh states, “Better muscle mass naturally improves insulin sensitivity by safely storing blood sugar as glycogen. Collectively, these metrics don’t simply inform us if you’re ‘not sick,’ they point out a excessive metabolic reserve, which means your physique can effectively course of vitamins and stand up to bodily stress.”

Steps to watch and enhance these deeper well being indicators over time

Dr Nagesh suggests beginning by scheduling an annual metabolic panel along with your physician to baseline your fasting glucose, lipids, and blood strain. At house, observe your resting coronary heart fee utilizing a smartwatch, search for a gentle downward pattern over months as health improves.

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“To proactively enhance these numbers, prioritise resistance coaching not less than twice every week. Constructing muscle creates a bigger storage reservoir for blood sugar, straight reducing fasting glucose. Pair this with regular, moderate-intensity cardio to decrease blood strain and improve vascular health. Lastly, defend your sleep. Persistent sleep deprivation elevates cortisol, which steadily drives up each blood strain and insulin resistance no matter your food regimen,” concludes Dr Nagesh. 

DISCLAIMER: This text relies on info from the general public area and/or the specialists we spoke to. All the time seek the advice of your well being practitioner earlier than beginning any routine.





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