Longevity & Aging · Metabolic & Cardiometabolic
NSDR yoga-nidra relaxation practice increases striatal dopamine about 65 percent via PET and aids learning and memory consolidation
In plain terms: Does yoga-nidra-style rest really boost brain dopamine by 65% and help you learn?
Part of: • Dopamine, Stress & Nervous System
The 65% figure rests on a single tiny 2002 PET study of expert meditators never independently replicated, and while post-learning rest does modestly aid memory, that benefit is a separate effect not shown to run through dopamine.
📅 Last reviewed: 2026-07-14 ⓘ
Evidence ladder
How far up the ladder this claim has climbed. A high consensus on a low rung means "consistent so far," not "proven in people."
Top evidence so far: Human trials (RCT / n-of-1)
How the studies fall
The evidence (5)
| Source | Grade | Stance | Quality | Finding |
|---|---|---|---|---|
| Kjaer 2002 · Cogn Brain Res | observational | supports | low | 11C-raclopride PET in 8 experienced yoga-nidra practitioners showed a 7.9% drop in ventral-striatal binding, interpreted as a about 65% rise in endogenous dopamine release, correlated with EEG theta. |
| Seban 2026 · Psychol Res | RCT | contradicts | moderate | In an ecologically valid classroom setting (N=161), 8-min wakeful rest gave no consistent memory benefit over distractor tasks, undercutting the strong learning claim. |
| Joshi 2026 · Curr Opin Behav Sci | mechanism | mixed | moderate | Review establishing that spontaneous thought during wakeful rest supports hippocampal memory reactivation/consolidation, but attributes it to default-mode-network dynamics, not striatal dopamine. |
| Mosbacher 2026 · Brain Cogn | RCT | mixed | moderate | 15-min quiet wakeful rest after arithmetic learning aided consolidation (enhanced by so-tDCS, n=58), supporting the rest-aids-learning half via slow-oscillation cortico-hippocampal mechanism, not dopamine. |
| Lou 2005 · Scand J Psychol | mechanism | mixed | low | Same Copenhagen group review reiterating the striatal-dopamine meditation finding from the original small sample, with no independent replication cohort. |
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