It protects against oxidative stress, which is associated with diseases such as heart disease, cancer, diabetes, and neurodegenerative diseases (like Alzheimers and Parkinsons)
Every time you use a nasal spray, there's a small but real chance of introducing bacteria from your nasal passages or the surrounding air back into the bottle
While this research is extensive and consistently positive, the gap between animal and human studies represents both a limitation of current knowledge and an opportunity for future research
These included dementia, confusion, psychomotor retardation, anterograde amnesia, intellectual deterioration moderate cerebellar syndrome, aphasia, and memory impairment
It may take a bit of leg work, but be your own best advocate