Coffee may affect sleep even when you feel rested. What trials reveal about dose, timing, decaf, and why the 8.8-hour rule is not a safe cutoff.
Sleep & Recovery
6 Articles
6
Evidence-based articles on sleep, naps, recovery, sleep quality, and interventions that may affect rest and recovery.
Does mouth taping improve sleep or breathing? Small studies suggest a possible benefit in selected people with mild sleep apnea, but evidence in healthy adults is sparse and mouth closure can worsen airflow in some obstructed sleepers.
Does white or pink noise really improve sleep? Research suggests the main benefit may be masking disruptive sounds rather than directly improving sleep itself.
Short naps can improve alertness and some cognitive performance, but no nap duration is proven to extend life. Here’s what studies say about 10–30 vs 60+ minutes.
Does magnesium improve sleep? An updated 2026 evidence review reveals modest trial effects, uncertain benefits, and a critical gap in baseline magnesium testing.
Oral GABA has limited human evidence for stress and sleep, preliminary data for body composition, and small studies showing growth-hormone effects. My workout experience is anecdotal, not proof.