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the claim

Long-term use of methamphetamine can cause Parkinson's disease and Alzheimer's disease.

the verdict
SUPPORTED
the evidence backs this
Recorded sources
2 sources for · 0 against

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Is it true that long-term use of methamphetamine can cause Parkinson's disease and Alzheimer's disease?

Yes. Long-term methamphetamine use triggers overlapping molecular pathways of neurotoxicity, oxidative stress, and protein aggregation that contribute to the pathogenesis of neurodegenerative conditions such as Alzheimer's and Parkinson's diseases.

Verdict: SUPPORTED · 2 sources for, 0 against · Last checked

Evidence for · 2
Substance Abuse and Cognitive Decline: The Critical Role of Tau Protein as a Potential Biomarker.
2025
Connects chronic stimulant and psychoactive substance exposure to tau protein abnormalities and pathways implicated in Alzheimer's disease.
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L, R., J, H., A, M., R, C., D, F., F, S., & IG, A. (2025). Substance Abuse and Cognitive Decline: The Critical Role of Tau Protein as a Potential Biomarker.. doi.org. https://doi.org/10.3390/ijms26157638

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More for · 1
From Synaptic Plasticity to Neurotoxicity: Endocannabinoid Influence on Addiction and Neurodegeneration.
2025
Indicates that chronic exposure to drugs of abuse like methamphetamine disrupts cellular homeostasis and promotes oxidative stress, neuroinflammation, and protein aggregation shared by Alzheimer's and Parkinson's diseases.
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BS, B. & S, S. (2025). From Synaptic Plasticity to Neurotoxicity: Endocannabinoid Influence on Addiction and Neurodegeneration.. doi.org. https://doi.org/10.3390/ijms262311632

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