The Claim

Long-term testosterone exposure, developmental effects, or effects in women may influence economic preferences, but these possibilities are not ruled out by the null findings of a single-dose trial in healthy men.

Source: Investigating the effects of single-dose intranasal testosterone on economic preferences in a large randomized trial of men

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
90score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Cause and effect
1 study reviewed
In plain English

A single dose of testosterone given to healthy men did not change economic preferences, but this does not mean that long-term exposure, early-life exposure, or effects in women have no impact on economic preferences.

See the scientific wording

The null findings of this study do not rule out the possibility that long-term testosterone exposure, developmental effects, or effects in women may influence economic preferences, as the trial only tested a single dose in healthy men.

Why this might work

Testosterone binds to receptors in brain areas that control emotion and choices, changing how those areas communicate, which can alter how a person values risk, fairness, or reward over time.

Hypothetical mechanismbased on 1 study

What the research says

1 study
  1. Study: Investigating the effects of single-dose intranasal testosterone on economic preferences in a large randomized trial of men

    This study only gave men one dose of testosterone and found it didn’t change how they made financial choices. But the claim says that doesn’t mean lifelong hormone levels or effects in women aren’t important— and the study itself agrees, saying more research is needed on those other cases.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.