World Heart Day | Sitting is the new smoking: Is your desk job putting your heart health at risk?

If your workday involves sitting at a desk for hours, a single workout may not be enough to counter the effects of being inactive for the rest of the day. A large pooled analysis published in The Lancet in 2016, which looked at data from more than a million adults, found that people who sat for around eight hours a day had a higher risk of early death unless they were also getting about 60 to 75 minutes of moderate physical activity each day.

The finding does not mean your morning workout is pointless. Instead, it highlights another part of the equation: how much you move throughout the day matters too.

Why sitting for long hours can be a problem

A typical office day can involve sitting during the commute, spending several hours at a desk, eating lunch at the workstation, sitting through meetings and then returning home to more screen time.

The phrase "sitting is the new smoking" is often used to describe this lifestyle. It is not a literal scientific comparison, but research has consistently linked prolonged sedentary behaviour with poorer health outcomes.

A 2015 meta-analysis published in The Annals of Internal Medicine found that prolonged sedentary time was associated with higher risks of cardiovascular disease and death, including among people who exercised regularly. The World Health Organization (WHO) also recommends limiting sedentary time as part of its physical activity guidelines.

Long periods of inactivity can also affect several factors linked to heart and metabolic health, including blood pressure, blood sugar, cholesterol and body fat.

These changes may not always be obvious. Someone can look fit and still spend most of their day sitting, which is why body weight alone does not tell the whole story about cardiovascular health.

Why your 30-minute workout is still worth doing

A morning run, gym session, yoga class or workout is still beneficial. The point is not to replace exercise with random movement during the day. Instead, think of the two as working together.

A structured workout gives you a dedicated period of physical activity, while short bouts of movement can help reduce the amount of uninterrupted sitting you do during the rest of the day. The easiest place to start is by breaking up long stretches of sitting.

Simple ways to move more at work

Get up regularly: Stand, stretch or walk around for a couple of minutes every 30 to 60 minutes. Setting a reminder can make this easier to remember.

Take walking calls: If a meeting does not require you to sit in front of a screen, use the opportunity to walk while you talk.

Try simple desk movements: Shoulder rolls, calf raises, seated leg extensions and gentle stretches can help you move between tasks.

Walk after meals: A short walk after lunch or dinner is an easy way to add movement to your day and may also help with blood sugar control.

Take the stairs: Choose the stairs for a few floors when practical, or park slightly farther away to add a few extra steps.

Break up evening screen time: Instead of sitting continuously after work, add a short walk, some gentle yoga or time spent doing an activity that keeps you moving.

Take breathing breaks: A few minutes of slow, controlled breathing between meetings can be a simple way to pause and manage work-related stress.

Don't wait for symptoms to check your heart health

Many cardiovascular risk factors can develop without obvious symptoms. Regular health checks can help identify problems such as high blood pressure, raised blood sugar or unhealthy cholesterol levels before they become more serious.

Your doctor can advise you on which checks you need and how often, based on your age, family history and other risk factors. People with a family history of heart disease or diabetes, smoking habits or other health concerns may need earlier or more frequent assessment.

Symptoms such as chest discomfort, unexplained breathlessness, fainting, unusual fatigue or sudden palpitations should not be ignored and may require prompt medical attention.

Think beyond the workout

Looking after your heart is not about one workout or one healthy meal. Regular movement, a balanced diet, adequate sleep, stress management and routine health checks all contribute to long-term health.

Some people may also include traditional wellness practices or Ayurvedic products such as rasayana formulations as part of their daily routine. These should be viewed as complementary wellness practices rather than treatments for heart disease, and should never replace prescribed medicines or medical care.

The simplest takeaway is perhaps the easiest one to follow: exercise when you can, but don't spend the rest of the day sitting still.

(Disclaimer: This article is for general awareness only and is not a substitute for medical advice. Consult a qualified doctor about your individual health needs before starting a new exercise routine.)