Preventive Health Checkup: 5 Essential Tests Before Turning 40

40s are the new 30s… Well, almost! Your 30s can feel like your best years, as your physical fitness typically reaches its peak during this decade. And turning 40 can feel like it’s only going to go downhill from there. But what if we told you that, with a little preventive healthcare and a healthy lifestyle, you could make your 40s your prime years?

The reason most of us feel like turning 40 is the beginning of the collapse of our physical form is because of the various lifestyle diseases and medical conditions that start to develop during these years. In fact, according to the Health of the Nation 2025 report from Apollo Hospitals, more than 65% of the total screened individuals struggled with non-communicable lifestyle diseases, showing no physical symptoms.

These non-communicable diseases include hypertension, cardiovascular diseases, obesity, and certain cancers, which now account for over 60% of all deaths in the country. Not only does this report paint a sobering picture of India’s current health index, but it also places a great emphasis on preventive healthcare.

It has been noted that preventive healthcare and regular health checkups significantly reduce the burden of disease in India. It warrants an ecosystem that contributes to early detection, lifestyle modifications, and reduction in healthcare costs against both communicable and non-communicable diseases. Taking active steps towards a healthy lifestyle and frequently monitoring your health can make your 40s feel like a breeze.

Most lifestyle diseases take root silently without showing symptoms, making it even more difficult to address and tackle them on time. So, when it comes to preventive healthcare, you don’t have to do a lot. You can start small by getting tested annually.

Platforms like Onsurity offer services like lab tests, telemedicine, and teleconsultation at discounted rates and are accessible at the touch of your fingertips, making it even easier for you to keep track of your physical well-being. Read on as we talk about the importance of preventive healthcare and 5 tests that you should definitely get before you turn 40.

Importance Of Routine Health Checkups and Preventive Care

For people in their late 30s or early 40s, routine health checkups and preventive care are essential because during this age range, early signs of lifestyle diseases and chronic conditions start to surface, and occasionally, they show no symptoms. Around this time, people begin to experience certain hormonal and metabolic shifts that have a direct impact on mood, weight, energy levels, and cardiovascular health.

Most people start to experience the following health issues around this time:

• Hypertension
• Type 2 Diabetes
• Cholesterol Imbalance
• Obesity
• Chronic Pain
• Fatty Liver Disease
• Stress/Anxiety/Depression
• Hormonal Imbalance

Early detection can ensure better chances of managing these conditions and reducing the physical impact. If these conditions go unchecked and untreated for a long time, then they can cause a significant threat to your quality of life, and can even be life-threatening to some extent.

These are the bridge years of your life, and setting a personal health baseline now can determine the outcomes later. Frequent monitoring can allow you to adjust and make lifestyle modifications so that your sunshine years are stress-free and easy.

Early detection can also halt or slow disease progression. For instance, identifying pre-diabetes allows necessary interventions that can prevent the development of full-blown diabetes and its complications, such as kidney failure, vision loss, or nerve damage.

Additionally, treating diseases early can also be less expensive than managing chronic illnesses, which often require hospitalisation, surgery, or long-term medication. Early intervention reduces the need for intensive and costly treatments.

Also read: Book Health Checkup with Onsurity Super App

5 Preventive Health Checkups Everyone Should Take Before Turning 40

Even if you feel perfectly healthy, the following five tests offer a foundational picture of how your body is doing – and can help you stay that way.

1. Lipid Profile Test

What it Diagnoses:

• The test examines the levels of total cholesterol (LDL – bad cholesterol and HDL – good cholesterol) and triglycerides in your body.

Why It’s Important:

• High LDL and triglyceride levels, or low HDL, are major risk factors for heart disease, stroke, and atherosclerosis.
• Many people with abnormal lipid levels show no symptoms until severe cardiovascular events occur.

How It Helps:

• Identifies risk of cardiovascular disease early, allowing for timely lifestyle changes (diet, exercise) or medications to prevent heart attacks and strokes.
• Guides doctors in monitoring the effectiveness of cholesterol-lowering treatments or lifestyle interventions.

2. Blood Sugar (Fasting and PP)

What it Diagnoses:

• Fasting Blood Sugar: Measures blood glucose after 8–12 hours of fasting.
• Postprandial (PP) Blood Sugar: Measures blood glucose 2 hours after a meal.

Why It’s Important:

• Detects prediabetes, diabetes, and impaired glucose tolerance—conditions that often develop silently.
• Helps assess how well your body processes and regulates sugar.

How It Helps:

• Early detection of abnormal blood sugar allows for interventions that can prevent or delay the onset of type 2 diabetes and related complications (heart, kidney, nerve damage).
• Enables monitoring and management of diabetes if already diagnosed.

3. Complete Blood Count (CBC)

What it Diagnoses:

• Assesses red blood cells, white blood cells, hemoglobin, hematocrit, and platelets.

Why It’s Important:

• Detects anemia, infections, immune system disorders, blood cancers (like leukemia), and clotting problems.
• Provides a broad overview of your general health and can signal underlying issues even before symptoms appear.

How It Helps:

• Early identification of blood-related disorders allows for prompt treatment, preventing severe complications.
• Useful for routine health monitoring and before surgeries or certain medications.

4. Kidney Function Test (KFT)

What it Diagnoses:

• Evaluates levels of creatinine, urea, and other markers to assess how well your kidneys are filtering waste.

Why It’s Important:

• Early kidney dysfunction often has no symptoms but can progress to chronic kidney disease if undetected.
• Kidney health is closely linked to blood pressure, diabetes, and heart health.

How It Helps:

• Enables detection of kidney issues at a reversible stage, allowing for interventions to prevent progression.
• Guides management of risk factors, such as high blood pressure and diabetes, which are leading causes of kidney disease.

5. Liver Function Test (LFT)

What it Diagnoses:

• Measures enzymes, proteins, and bilirubin in the blood to assess liver health.

Why It’s Important:

• Detects liver inflammation, infections (like hepatitis), fatty liver, damage from alcohol or medications, and early signs of liver disease.
• The liver is vital for metabolism, detoxification, and nutrient storage.

How It Helps:

• Early detection of liver abnormalities enables lifestyle or medication adjustments to prevent irreversible liver damage.
• Supports monitoring if you have risk factors such as obesity, alcohol use, or a family history of liver disease.

Also read: Break-Free From Underlying Health Conditions

Onsurity’s Preventive Healthcare Ecosystem

Onsurity offers a comprehensive preventive healthcare ecosystem designed to make quality health services accessible and affordable, especially for employees of MSMEs and startups. Members benefit from a wide range of preventive care features, all managed through a user-friendly digital platform:

• Discounted Health Checkups: Onsurity members can access regular health screenings and lab tests at reduced rates, making it easier to monitor key health parameters and detect potential issues early.

• Teleconsultations: The platform provides unlimited or discounted virtual doctor consultations, allowing members to seek expert medical advice from the comfort of their home, ideal for early intervention and ongoing health management.

• Affordable Medicines: Members enjoy significant savings on medicine purchases through an integrated online pharmacy, ensuring they can maintain prescribed treatments without financial strain.

• Family Coverage: Membership benefits can be extended to family members, ensuring holistic preventive care for loved ones as well.

• Digital Convenience: All services, from booking checkups to consulting doctors and ordering medicines, are accessible via the Onsurity app, putting preventive healthcare at members’ fingertips.

Suggested read: 5 Essential Preventive Health Check-Ups for Women

Powered by Trusted Lab Partners: Healiens and Redcliffe

Redcliffe Labs and Healians are integral partners in Onsurity’s preventive healthcare ecosystem, ensuring members have access to reliable, high-quality diagnostic services across India.

Redcliffe Labs

• Nationwide Reach: Redcliffe Labs operates over 80 advanced labs and more than 2,000 collection centers, serving 220+ cities, including urban, semi-urban, and remote areas. Home sample collection is available, making preventive checkups convenient for members.

• Innovation in Diagnostics: The lab is pioneering the use of drone delivery for sample collection, significantly reducing turnaround times and expanding access to diagnostics in hard-to-reach regions like Himachal Pradesh, Uttarakhand, Jammu & Kashmir, and the North East.

• Comprehensive Tests: Redcliffe offers more than 3,600 pathology tests and over 500 radiology and wellness services, covering the full spectrum of preventive and diagnostic needs.

Healians

• Healians is widely recognized as a leading diagnostic network in India, known for its extensive lab infrastructure, home sample collection, and focus on preventive health checkups.

• Healians typically partners with healthcare platforms to provide discounted lab tests, fast report turnaround, and quality assurance, complementing Onsurity’s goal of making regular screenings easy and affordable

⇒ Please note: These services are available exclusively to employees whose organisations have opted for Onsurity’s healthcare membership.

The Bottom Line

You don’t have to wait for a health scare to start caring for your body. Turning 40 should feel like a milestone, not a medical alarm bell. With the right tests, timely advice, and a culture of care, you can feel confident, informed, and in control of your health journey.

Onsurity is here to make preventive healthcare a part of your everyday life, not just an emergency plan. Let’s build a future where staying healthy is proactive, not reactive. Learn more about how Onsurity is facilitating the physical and mental well-being of India Inc. 

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