Exerc Immunol Rev 10:91106 Gleeson M, Bishop NC, Oliveira M, McCauley T, Tauler P, Lawrence C (2012) Effects of a Lactobacillus salivarius probiotic intervention on infection, cold symptom duration and severity, and mucosal immunity in endurance athletes
When stored correctly, usually under refrigeration, it can help preserve solution usability for an extended period, making it both efficient and cost-effective
The outcomes vary depending on age, lifestyle, and metabolic health
These CNS studies did not specifically examine immune cells, and there are several confounding factors such as medication status, the method of collection, and mood state at the time of collection/death