簡單的動作如深呼吸原來亦可以令身體暫時得到放鬆。美國壓力研究所（The American Institute of Stress）指出，每當人感受到壓力、焦慮和緊張時，呼吸會變得急促，血液中的含氧量亦會下降。相反，若然面對緊張或壓力時深呼吸，可以增加血液中的含氧量，刺激副交感神經，減慢心率及緩解壓力7。
Prevalence, psychosocial correlates and service utilization of depressive and anxiety disorders in Hong Kong: the Hong Kong Mental Morbidity Survey (HKMMS). https://pubmed.ncbi.nlm.nih.gov/25660760/
Manzoni GM, Pagnini F, Castelnuovo G, Molinari E. Relaxation training for anxiety: a ten-years systematic review with meta-analysis. BMC Psychiatry. 2008 Jun 2;8:41. doi: 10.1186/1471-244X-8-41. PMID: 18518981; PMCID: PMC2427027.
Effects of saffron on sleep quality in healthy adults with self-reported poor sleep: a randomized, double-blind, placebo-controlled trial. J Clin Sleep Med. 2020 Jun 15;16(6):937-947.
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