Longevity blood tests
Most of us keep an eye on our health, from eating well and staying active to managing stress. But it’s not always easy to know what’s really going on inside our bodies. That’s where longevity blood tests can make a real difference.
These tests are designed to look beneath the surface, picking up on subtle signs of how your body is functioning and how it’s likely to age over time. They can highlight risks you might not be aware of yet, giving you the chance to take action before problems develop.
From checking how well your body handles sugar to spotting low-grade inflammation or nutrient gaps, longevity blood tests offer helpful insights that support healthier choices and better ageing, whatever stage of life you’re at.
Why are longevity blood tests useful?
As we age, our bodies change, but not at the same pace for everyone. Stress, diet, exercise, sleep and genetics all play a role. Longevity blood tests go beyond checking for current illness. They reveal potential risks and help you act early to protect your long-term health.
These tests can help you:
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Spot potential health risks early, before symptoms show
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Understand how your lifestyle is affecting your body
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Track your health over time, especially if you’re making positive changes
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Personalise your health goals, based on real data about your body
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Support better ageing, by focusing on prevention rather than treatment
What do longevity blood tests check for?
Longevity blood tests usually look at a wide range of health markers. These are signals in your blood that give insight into how your body is functioning and how it may age in the future.
Here are some of the most common markers included:
Cholesterol and heart health
These checks look at the different types of fat in your blood, including what’s often called "good" and "bad" cholesterol. It helps give an idea of how healthy your heart is and whether you might need to make changes to look after it long-term.
Blood sugar levels
This shows how well your body deals with sugar. If your levels are too high for too long, it could be a sign you’re at risk of developing issues like type 2 diabetes, even if you feel fine right now.
Liver and kidney health
Your liver and kidneys quietly do a lot of the hard work, like filtering waste, keeping your blood clean and helping with digestion. These tests check how well they’re coping and whether they need a little extra support.
Vitamins and minerals
Your body needs the right balance of vitamins and minerals to keep everything running smoothly. These checks look for common shortfalls, like low Vitamin D, iron or B12, which can affect your energy, mood and immune system.
Inflammation
A little inflammation is normal, like when your body is fighting off a cold. But ongoing low-level inflammation can be a sign your body’s under stress. These tests help pick that up, even if there are no obvious symptoms yet.
Markers such as hsCRP and ferritin can also provide useful clues, as raised levels may indicate underlying inflammation that could impact long-term health and ageing. You can check these with our Inflammatory Profile test.
Thyroid health
Your thyroid is a small gland that helps control things like your energy levels, weight and mood. If it’s not working quite right, it can throw your whole system off, so it’s useful to check in on it from time to time.
Hormone levels
Hormones play a big part in how we feel, affecting everything from sleep and stress to weight and motivation. Some tests check for imbalances that could be having an impact on your day-to-day wellbeing, especially as you get older.
What can these results tell you?
The real value of longevity blood tests lies in what they reveal before problems begin. For example:
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Raised blood sugar could point to future risk of diabetes
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Low Vitamin D might affect bone health, immunity or energy
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High inflammation markers could suggest your body is under stress
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Low iron or B12 might explain ongoing tiredness
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Changes in kidney or liver function might suggest it’s time to review diet or lifestyle
No single result gives the full picture but together, they can highlight patterns, risks and areas worth paying attention to.
Is this different from regular blood testing?
While regular blood tests often focus on diagnosing current symptoms, longevity blood tests take a broader, future-focused view. They help answer questions like:
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Is my body ageing well?
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Are there any hidden risk factors I should know about?
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How are my lifestyle choices affecting my health?
This kind of testing is ideal if you’re looking to be proactive, want to track how your body is responding to changes or simply want reassurance that you're on the right track.
Do I need to feel unwell to have a longevity blood test?
Not at all. In fact, one of the best times to have a longevity blood test is before you feel unwell.
Many people choose to have these tests when:
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Reaching a milestone birthday (like turning 40 or 50)
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Making lifestyle changes (like a new fitness or diet routine)
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Feeling "off" but not sure why
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Wanting a clearer view of their overall health
It's all about staying ahead of potential issues and feeling more in control of your future wellbeing.
How are the tests done?
Longevity blood tests are simple and quick. A trained phlebotomist takes a sample of blood from your arm, and it’s sent to a lab for analysis. The results are usually returned in a clear, easy-to-understand report, with commentary to explain what each marker means.
What happens if something is flagged?
If your results show something that needs attention, it doesn't necessarily mean something is wrong, but it’s a helpful sign to take action.
For example, slightly raised cholesterol may be improved through changes to your diet and exercise. Low Vitamin D could be fixed with supplements and a little more time outdoors. And in some cases, your results might suggest it's worth speaking to your GP for further tests or advice.
The aim is always to give you more knowledge, not worry and to help you take simple, positive steps to protect your future health.
Start investing in your future health today
Your blood holds powerful insights into your health, not just how you feel now but how you may feel in the years to come. Longevity blood tests give you the chance to take stock, catch potential issues early and take control of your wellbeing with confidence.
At Bluecrest Wellness, our full body health assessments include a wide range of markers connected to ageing, energy, immunity and more. They are designed to help you stay on top of your health in a way that fits your lifestyle.
With nationwide clinics, quick results and expert support at every stage, we make the process simple, reassuring and centred around you.
Need help? Call free on
0800 652 2183 to speak to one of our team.
