Scientists are genuinely divided on this question.

Not medical advice — just what the research says.

What's still open

What the evidence found 3 findings
Based on 13 sources:
PMC peer-reviewed View
PMC peer-reviewed View
Johns Hopkins Medicine institutional View
PMC peer-reviewed View
Wiley Online Library peer-reviewed View
PMC - NIH peer-reviewed View
Coffee and Health institutional View
American Academy of Sleep Medicine institutional View
Journal of Clinical Sleep Medicine peer-reviewed View
EurekAlert news View
Science Direct systematic review peer-reviewed View
PMC research article peer-reviewed View
News Medical news View
Based on 13 sources:
PMC - NIH peer-reviewed View
Mayo Clinic institutional View
PubMed peer-reviewed View
Healthline news View
McGill University Office for Science and Society institutional View
PMC peer-reviewed View
StatPearls - NCBI Bookshelf institutional View
Research Gate peer-reviewed View
PMC - NIH peer-reviewed View
Cleveland Clinic institutional View
PubMed peer-reviewed View
Endocrine Society institutional View
News Medical news View
Based on 13 sources:
PMC peer-reviewed View
PMC peer-reviewed View
Consensus institutional View
PMC Research Article peer-reviewed View
PMC Research Article peer-reviewed View
PMC peer-reviewed View
PubMed peer-reviewed View
ScienceDaily news View
JAMA peer-reviewed View
American Heart Association institutional View
PMC article on relative vs absolute risk peer-reviewed View
PMC article on non-traditional MI risk factors peer-reviewed View
FDA guidance on non-inferiority trials institutional View
What research hasn't answered 3 gaps
PMC peer-reviewed View
PMC peer-reviewed View
Consensus institutional View
PMC Research Article peer-reviewed View
PMC Research Article peer-reviewed View
PMC peer-reviewed View
PMC peer-reviewed View
Johns Hopkins Medicine institutional View
PMC peer-reviewed View
Wiley Online Library peer-reviewed View
Sources 19 findings
argumentation Unknown
tree-leaf argumentation
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tree-leaf argumentation
tree-leaf argumentation
tree-leaf argumentation
tree-leaf argumentation
tree-leaf argumentation
tree-leaf argumentation
tree-leaf argumentation
tree-leaf argumentation
tree-leaf argumentation
tree-leaf argumentation
argumentation Unknown
argumentation Unknown
argumentation Unknown
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Generated by reaso.ai's editorial pipeline: claim restated, scientific consensus classified via 3-run majority vote, 19 findings enriched with attribution and study type, narrative written in neutral voice. No individual researcher has signed off on this specific analysis — see methodology for how the pipeline works. Built with Claude Sonnet by Anthropic. Updated April 16, 2026. How we do this →

Written by AI. Sources are linked for verification.