Resources 

This page contains references to numerous key studies related to flexibility and breathing. In the realm of research, it's crucial to recognize that many published studies are later revised, challenged, or even disproven. Science is an ongoing journey of discovery. 

Passive Stretching Research

https://pubmed.ncbi.nlm.nih.gov/23715256/

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4668158/|

https://pubmed.ncbi.nlm.nih.gov/26644667/

Stretching Duration and Range Of Motion

https://pubmed.ncbi.nlm.nih.gov/29506306/

https://pubmed.ncbi.nlm.nih.gov/31063516/

Why 7/10 Intensity?

https://pubmed.ncbi.nlm.nih.gov/19855344/

Stretching BEFORE Exercise *Not* Smart
Reduced power: https://pubmed.ncbi.nlm.nih.gov/17194246/
Reduced strength: https://pubmed.ncbi.nlm.nih.gov/10956367/

Reduced speed: https://pubmed.ncbi.nlm.nih.gov/18714249/ 

Reduced jump: https://pubmed.ncbi.nlm.nih.gov/17674024/ 

Slower 1 mile time: https://www.researchgate.net/publication/236185094_Effects_of_Static_Stretching_on_1-Mile_Uphill_Run_Performance

Less endurance: https://pubmed.ncbi.nlm.nih.gov/19918196/ 

Joint laxity: https://pubmed.ncbi.nlm.nih.gov/25647536/ 

Stretching Improves Pain Tolerance

https://academic.oup.com/cercor/article/24/10/2732/307000

Nostril preferred breathing & the ANS effects: https://pubmed.ncbi.nlm.nih.gov/8063359/

Nervous System Research: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5053491/

Right vs Left nostril research: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3978938/

Breath Control Can Change Life

https://pubmed.ncbi.nlm.nih.gov/30245619/ 

Yoga Breathing for COPD

https://journals.lww.com/jcrjournal/Abstract/2009/03000/Efficacy_and_Tolerability_of_Yoga_Breathing_in.10.aspx

Nasal Cycle Research

EEG signatures change during unilateral Yogi nasal breathing https://www.nature.com/articles/s41598-021-04461-8.pdf

Meditation & Longevity: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3057175/