Related Experiment Video
Updated: Apr 18, 2026
Inverse Probability of Treatment Weighting Propensity Score using the Military Health System Data Repository and National Death Index
Published on: January 8, 2020
The Hundred Person Wellness Project and Google's Baseline Study: medical revolution or unnecessary and potentially
1Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, Toronto M5T 3L9, Ontario, Canada. ediamandis@mtsinai.on.ca.
Insights
Intensive wellness monitoring projects may lead to over-diagnosis and over-treatment, causing more harm than good. Caution is advised when using advanced omics testing for early disease detection.
Area of Science:
- Preventive Medicine
- Clinical Diagnostics
- Biomedical Research
Background:
- Large-scale wellness projects, like the Hundred Person Wellness Project and Google's Baseline Study, aim for early disease detection through intensive monitoring.
- These initiatives intend to intervene early to prevent or delay symptomatic disease based on abnormal findings.
Purpose of the Study:
- To critically evaluate the potential effectiveness and risks of intensive monitoring and early intervention strategies in large-scale wellness projects.
- To explore whether current advanced diagnostic capabilities, particularly in omics, can be safely and effectively applied for disease prevention.
Main Methods:
- Analysis of historical data and experiences from cancer screening programs over the past 30 years.
- Review of case examples where intensive testing led to the identification of indolent or incidental findings.
- Examination of outcomes associated with aggressive treatments for various diseases.
Main Results:
- Intensive screening and testing may result in the detection of indolent or incidental conditions, leading to potential harm from unnecessary interventions.
- Aggressive treatment does not consistently correlate with improved patient outcomes.
- The potential for over-diagnosis and over-treatment is a significant concern with advanced clinical testing.
Conclusions:
- While omics advances offer powerful tools for clinical testing, their application requires caution to mitigate risks of over-diagnosis and over-treatment.
- The long-term benefits and harms of ambitious wellness monitoring initiatives remain to be determined through ongoing studies.
- A balanced approach is needed to leverage technological advancements without causing iatrogenic harm.
Abstract:
The Hundred Person Wellness Project is an ambitious pilot undertaking, which aims to intensely monitor 100 individuals over 10 months. Patients with abnormal findings will be treated, in hopes that this early intervention will avoid, or delay, symptomatic disease. Google's "Baseline Study" is of similar scope and will enroll 10,000 people over 2 to 3 years. I here speculate that these approaches will likely not be effective in preventing disease, but instead, lead to unnecessary and potentially harmful interventions. Examples from the cancer screening experience over the last 30 years are provided, which show that intensive testing may uncover indolent disease or incidental findings which, when treated, may cause more harm than good. Additional examples show that aggressive treatments for cancer and other diseases do not always lead to better patient outcomes. I conclude that the recent advances in omics provide us with unprecedented opportunities for high content clinical testing, but such testing should be used with caution to avoid the harmful consequences of over-diagnosis and over-treatment. Despite the detailed rebuttals by Hood and colleagues in another commentary in BMC Medicine, time will show the actual benefits and harms of these ambitious initiatives.
More Related Videos
Related Concept Videos
01:23Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast,...
01:56Ethics in Research
02:07Blind Procedures
01:16Clinical Trials
There are four phases in a clinical trial. A phase one...
01:52Regression Toward the Mean
01:11Blinding