Infact
87 / 100
True

The text states that 73% to 78% of individuals with ADHD have a circadian phase delay, with a 1.5-hour delay in melatonin secretion.

Infact verdict: True (87/100).

The claims regarding ADHD and circadian phase delay, as well as Delayed Sleep Phase Syndrome (DSPS) and melatonin secretion, are supported by multiple sources. The first claim about ADHD is corroborated by evidence indicating a high prevalence of circadian rhythm dysfunction in individuals with ADHD, with melatonin onset delays. The second claim about DSPS is supported by evidence describing a typical 1.5-hour delay in melatonin secretion. Both claims are backed by credible sources, including scientific articles and health foundations, leading to a high confidence in their accuracy.

September 23, 2026 Language: en_US 2 claims analyzed
How is this score determined? →

Individual claims

88
True Health
Approximately 73% to 78% of individuals with ADHD have an underlying circadian phase delay.
The claim is supported by multiple sources indicating that a significant percentage of individuals with ADHD experience circadian rhythm dysfunction, with melatonin onset delays. Sources such as the PMC article and ADDitude Magazine corroborate this information, providing a strong basis for the claim.
Fact Check Score None
Fact Check Weight 0
Web Consensus Score 85
Web Consensus Weight 40
Source Quality Score 80
Source Quality Weight 20
Llm Reasoning Score 75
Llm Reasoning Weight 40
Llm Reasoning Score Raw 75
Weighted Total 88
Evidence Summary 3 web sources corroborate the claim.
86
True Health
Delayed Sleep Phase Syndrome is characterized by a 1.5-hour delay in endogenous melatonin secretion.
The claim is supported by evidence from the Sleep Health Foundation and other scientific sources, which describe DSPS as involving a typical 1.5-hour delay in melatonin secretion. This is consistent with the general understanding of the disorder.
Fact Check Score None
Fact Check Weight 0
Web Consensus Score 80
Web Consensus Weight 40
Source Quality Score 75
Source Quality Weight 20
Llm Reasoning Score 70
Llm Reasoning Weight 40
Llm Reasoning Score Raw 70
Weighted Total 86
Evidence Summary 3 web sources corroborate the claim.

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