Evidence Library · Leadership Pathways & Outcomes

CEO health, selection, continuity, and firm performance

This source supports 2 distinct public claims. Each claim is shown separately so differences between measurement variation, intervention results, null findings, and human-outcome validation remain visible.

Leadership Pathways & Outcomes

Peer-reviewed researchPeer reviewed

External empirical finding · Supporting · 2023

Health predicted who became and remained CEO, but the CEO role itself did not worsen health

Using linked Swedish health, population, CEO, and company records covering 28 birth cohorts, the researchers found that healthier professionals were more likely to become CEOs and that poorer health was associated with CEO turnover. Becoming a CEO had no discernible effect on the health of the person holding the role.

Research basis

Register-based longitudinal observational study. 28 Swedish birth cohorts linked to comprehensive population, health, CEO, and firm records.

What it supports

Leader-population evidence connecting measured health with selection into and continuity within CEO roles.

Boundary

These findings come from Swedish register data and remain observational. They do not show that improving an individual CEO’s health would produce an equivalent improvement in company performance.

BOL relevance

Supports careful study of leader health, continuity, and firm outcomes while showing selection effects and subgroup differences.

Source class

Peer-reviewed research

Role in BOL

Supporting

Population context

Leaders or executives

Evidence basis

Administrative or register outcomes with measured or self-reported exposures

Endpoint

CEO appointment, CEO turnover, and change in the health of the person becoming CEO

Important null or boundary finding

Becoming a CEO had no discernible effect on the health of the role holder.

CEO healthturnoverfirm performancekey-person risk

Full source review pending. Status last assessed 26 July 2026.

Leadership Pathways & Outcomes

Peer-reviewed researchPeer reviewed

External empirical finding · Supporting · 2023

Poorer CEO mental health was associated with lower performance in smaller firms

Poorer CEO mental health was associated with lower company performance among smaller firms, but not larger firms. In the smaller-firm analysis, a one-standard-deviation deterioration in the study’s mental-health index corresponded to a 6% performance reduction relative to the mean.

Research basis

Register-based longitudinal observational study. 28 Swedish birth cohorts linked to comprehensive population, health, CEO, and firm records.

What it supports

A bounded association between CEO mental health and company performance in smaller firms.

Boundary

These findings come from Swedish register data and remain observational. They do not show that improving an individual CEO’s health would produce an equivalent improvement in company performance.

BOL relevance

Supports careful study of leader health and distal company outcomes while preserving selection, firm-size, and causal boundaries.

Source class

Peer-reviewed research

Role in BOL

Supporting

Population context

Leaders or executives

Evidence basis

Administrative or register outcomes with measured or self-reported exposures

Comparator

Smaller firms versus larger firms

Endpoint

Company performance by CEO mental-health index and firm size

Important null or boundary finding

The reported mental-health association with performance was not present in larger firms.

CEO healthmental healthfirm performancefirm size

Full source review pending. Status last assessed 26 July 2026.

This entry is part of the Bio-Optimized Leadership™ Evidence Library. Each claim states its research basis, what the source supports, what it does not support, and how it relates to the BOL model.

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