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Related Concept Videos

Preventive Healthcare Services01:30

Preventive Healthcare Services

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Preventive healthcare services keep people healthy via frequent check-ups, screening, and counseling. They primarily aid in disease prevention rather than treating an acute or chronic illness. Preventive treatment also keeps individuals productive and energetic, allowing them to work well into their retirement years. Examples of preventive care services include:
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Combination Therapies and Personalized Medicine02:50

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Combining two or more treatment methods increases the life span of cancer patients while reducing damage to vital organs or tissue from the overuse of a single treatment. Combination therapy also targets different cancer-inducing pathways, thus reducing the chances of developing resistance to treatment.
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Several factors can increase the risk of cancer in an individual. About 50% of cancer cases can be prevented by adopting a healthy lifestyle, regular exercise, eating healthy, and following a modest cancer prevention diet. Epidemiological studies have consistently shown that populations with vegetable and fruit-rich diets have reduced the incidence of cancer. On the other hand, populations who have a diet rich in animal fat, red meat, junk food, or high calories are predisposed to cancer.
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Targeted Cancer Therapies02:57

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The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
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Accuracy and Precision01:52

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Scientists typically make repeated measurements of a quantity to ensure the quality of their findings and to evaluate both the precision and the accuracy of their results. Measurements are said to be precise if they yield very similar results when repeated in the same manner. A measurement is considered accurate if it yields a result that is very close to the true or the accepted value. Precise values agree with each other; accurate values agree with a true value.  Highly accurate...
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Dynamic Digital Biomarkers of Motor and Cognitive Function in Parkinson's Disease
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Prevention, precision prevention and precision medicine.

Paolo Vineis1

  • 1School of Public Health, Imperial College, London, United Kingdom.

Exposome
|November 10, 2025
PubMed
Summary
This summary is machine-generated.

The exposome, or expotype, offers potential for precision medicine but requires critical evaluation for practical prevention. Population-level interventions like taxation and vaccination remain highly effective and cost-efficient public health strategies.

Keywords:
NNTexpotypehealthcare costsindividual responsibilitynanny-Stateprecision prevention

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Area of Science:

  • Public Health
  • Environmental Health
  • Precision Medicine

Background:

  • The concept of the exposome (expotype) complements the genotype, aiming to advance precision medicine and primary prevention.
  • Integrating technologies like omics, Electronic Health Records, and AI into public health is appealing.
  • However, the utility of the exposome approach for precision prevention warrants critical examination.

Purpose of the Study:

  • To critically assess the application of the exposome approach for precision prevention.
  • To evaluate the practical requirements and limitations of using the expotype.
  • To contrast individual-focused precision prevention with population-level public health interventions.

Main Methods:

  • Commentary and critical analysis of existing proposals and technologies.
  • Review of the evidence required for causality in expotype measurements.
  • Economic considerations of implementing expotype measurements in healthcare.

Main Results:

  • The practical application of the expotype for prevention requires robust proof of causality.
  • The added value of the expotype may be limited, especially when considering metrics like the Number Needed to Treat (NNT).
  • The cost of measuring the expotype, particularly with omics data, may be prohibitive for healthcare systems.

Conclusions:

  • Precision prevention via the exposome faces challenges in causality, cost, and practicality.
  • Public health successes are often driven by structural, societal interventions (e.g., taxation, vaccination) rather than solely individual responsibility.
  • Population-level prevention strategies are more cost-effective, broadly applicable, and sustainable than individualized approaches, and should not be overshadowed by precision prevention proposals.