
As an FCA-authorised UK broker that has helped arrange over 800,000 policies, WeCovr provides expert guidance on private medical insurance. Your lifestyle choices, particularly smoking and BMI, are two of the most significant factors insurers use to calculate your premiums. This article explores exactly how much they can affect the price you pay.
When you apply for private health insurance, providers don't just look at your age and location. They conduct a thorough risk assessment to predict how likely you are to make a claim. This is where your lifestyle comes in.
Insurers are in the business of managing risk. A person with habits linked to poor health outcomes, such as smoking or having a very high Body Mass Index (BMI), is statistically more likely to need medical treatment. This higher risk translates directly into higher monthly premiums.
Think of it like car insurance: a driver with a history of accidents pays more because they are seen as a higher risk. Similarly, in health insurance, lifestyle factors that increase your health risks will increase your costs. The key factors insurers analyse include:
Understanding these factors is the first step to managing your private medical insurance costs and finding the right cover for your needs.
Before we dive deeper, it's essential to be clear about what private medical insurance is and, crucially, what it isn't.
PMI is designed to cover the costs of private treatment for acute conditions that arise after you take out your policy.
An acute condition is a disease, illness, or injury that is likely to respond quickly to treatment and lead to a full recovery. Examples include joint replacements, cataract surgery, or treatment for a hernia.
This is a critical point: Standard UK private health insurance does not cover pre-existing or chronic conditions.
PMI is a complement to the NHS, not a replacement. It offers you faster access to eligible treatment, a choice of specialist, and the comfort of a private hospital room.
Of all the lifestyle choices you make, your smoking status has the most dramatic impact on the cost of your private health insurance. Insurers view smoking as a major red flag, and the premium difference between a smoker and a non-smoker can be substantial.
The reasoning is purely statistical and based on overwhelming evidence from health organisations like the NHS. According to the NHS, smoking is the leading cause of preventable death and disease in the UK. It is directly linked to a vast array of serious health problems:
For an insurer, each of these risks represents a potential future claim—and often a very expensive one. To offset this increased financial risk, they apply a significant "loading" to a smoker's premium.
The "smoker loading" can increase your premium by anywhere from 30% to 50%, and sometimes even more. The exact amount depends on the insurer, your age, and other risk factors.
To illustrate the difference, let's look at some example monthly premiums.
| Age | Non-Smoker (Est. Monthly Premium) | Smoker (Est. Monthly Premium) | Potential Annual Difference |
|---|---|---|---|
| 30 | £45 | £65 | £240 |
| 40 | £60 | £90 | £360 |
| 50 | £85 | £130 | £540 |
| 60 | £130 | £200 | £840 |
Disclaimer: These figures are for illustrative purposes only and represent a mid-level comprehensive policy outside London. Actual quotes will vary based on individual circumstances, chosen cover level, and insurer. For an accurate quote, it's best to speak with a PMI broker.
As you can see, the financial penalty for smoking becomes more severe with age, as the underlying health risks are compounded.
This is a common point of confusion. An insurer's definition of a "smoker" is very broad and typically includes anyone who has used any tobacco or nicotine products within the last 12 months.
This includes:
Even if you only smoke socially or use a nicotine patch, you must declare it. Insurers operate on a clear binary: you either have used nicotine in the last 12 months, or you have not.
Here's the good news: this premium loading isn't permanent. If you quit smoking and remain nicotine-free for a continuous period (usually 12 months), you can be re-classified as a non-smoker.
How to get your non-smoker discount:
This can lead to immediate and significant savings, providing a powerful financial incentive to quit, alongside the obvious health benefits.
After smoking, your Body Mass Index (BMI) is the next most influential lifestyle factor for private health insurance premiums. While not as heavily penalised as smoking, a high BMI can still lead to a noticeable increase in your costs.
BMI is a simple measure that uses your height and weight to work out if your weight is healthy. It's the most common tool used by doctors and insurers to assess weight-related health risk.
The formula is: BMI = weight (kg) / [height (m)]²
The NHS uses the following categories to interpret BMI for most adults:
While BMI doesn't account for muscle mass versus fat, it remains a reliable indicator of risk for the general population.
Similar to smoking, a high BMI is statistically linked to a range of serious health conditions that often require medical intervention. According to a 2023 report from the Office for National Statistics (ONS), obesity is a growing public health concern in the UK.
Health problems associated with a high BMI include:
For an insurer, these conditions represent a higher likelihood of future claims for consultations, diagnostics, and expensive surgical procedures.
Most insurers have a "standard" BMI range, typically up to around 30. If your BMI falls within this range, your weight is unlikely to affect your premium.
However, once your BMI goes above this threshold, insurers may start to apply a "loading" or percentage increase to your premium. The higher your BMI, the larger the loading.
| BMI Range | Insurer's Assessment | Estimated Premium Loading |
|---|---|---|
| 18.5 - 29.9 | Standard Risk | 0% |
| 30.0 - 34.9 | Moderate Risk | 10% - 25% |
| 35.0 - 39.9 | High Risk | 25% - 50% |
| 40.0+ | Very High Risk | 50%+ or potential decline |
Important Note: This table is a general guide. Each insurer has its own specific BMI thresholds and loading percentages. Some may be more lenient than others. This is where an expert broker like WeCovr can add huge value by matching you with the provider best suited to your health profile.
In very extreme cases (e.g., a BMI over 45), some insurers may decline to offer cover altogether until the applicant's BMI is reduced.
While smoking and BMI are the heavy hitters, insurers also take a holistic view of your health and habits.
During the application, you'll be asked about your weekly alcohol consumption in units. Moderate drinking is unlikely to impact your premium. However, consistently high alcohol intake (well above the NHS recommendation of 14 units per week) can be a red flag. It's linked to liver disease, heart problems, and certain cancers, which may lead to a higher premium or special exclusions on your policy.
Your job and hobbies are generally less of a concern for standard PMI, as it doesn't typically cover accidents that would be handled by A&E or fall under a personal accident policy. However, if you have a particularly high-risk profession (e.g., professional diver, bomb disposal expert) or hazardous hobbies, it might be a point of discussion, though it rarely affects premiums for mainstream providers.
The good news is that the insurance industry is moving towards a more proactive approach to health. Many leading UK providers now offer wellness programmes that reward you for living a healthy life.
Providers like Vitality and Aviva have pioneered this model. They offer discounts, cashback, and other perks for engaging in healthy activities. This can include:
By linking your activity tracker or smartphone app, you can earn points that translate into real financial rewards, including a reduction in your renewal premium. This creates a win-win situation: you get healthier, and the insurer benefits from a lower claims risk.
At WeCovr, we believe in empowering our clients to live healthier lives. That's why, in addition to finding you the best private health cover, we offer added benefits to support your wellness journey.
If you're facing high premiums due to lifestyle factors, or simply want to find the most affordable cover, there are several practical steps you can take.
When you apply for private medical insurance, you will be asked direct questions about your medical history and lifestyle, including smoking and your height/weight. It is absolutely vital that you answer these questions completely and honestly.
Intentionally hiding your smoking habit or providing a false weight is considered non-disclosure. If you later make a claim and the insurer discovers the truth (which they often do by checking your GP records), the consequences can be severe:
The temporary saving from being dishonest is never worth the risk of having your cover invalidated when you need it most.
Your lifestyle choices have a direct and measurable impact on the cost of your private health cover. While factors like smoking and a high BMI will increase your premiums, the UK private medical insurance market is competitive, and there are always ways to find affordable, high-quality cover.
The key is to get expert, independent advice.
Ready to find the right private health cover for you? Let WeCovr do the heavy lifting. Get a free, no-obligation quote today and let our experts compare the UK's leading insurers to find a policy that fits your needs and your budget.






