Peer-reviewed study
One sleepless night can disrupt short-term muscle-building signals
The effect of acute sleep deprivation on skeletal muscle protein synthesis and the hormonal environment
Last updated 2026-07-21
Source details
PubMed-linked study details.
- Authors
- Lamon et al.
- Journal
- Physiological Reports. 2021.
- Identifiers
- PMID 33400856 · DOI 10.14814/phy2.14660
Honest limits
What this study does not prove.
This small study tested one night of complete sleep deprivation and short-term laboratory markers. It does not show that one bad night causes visible muscle loss.
Kris's practical takeaway
Here's what to do with it.
A rough night is a reason to manage training and recovery expectations, not a reason to punish the body with more work.
What to remember
Three useful reminders.
One bad night changes the session, not your identity
Recovery expectations should match the night you had
A lab signal is not the same as losing muscle overnight
Related guides and studies
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