doi: 10.1016/j.fhfh.2022.100110 214
The short of it is that fatigue and reduced athletic performance isnt driven so much by muscle glycogen depletion as it is, likely, from a central nervous system mechanism that can be hacked by just giving a tiny bit of carbs during very high intensity exercise to keep the blood supply from dropping the carb equivalent of ~1/2 tsp of honey per 20 min of intense exercise
(Full disclosure: Ive had intravenous glutathione, and I felt significantly rejuvenated afterwards.) But lets face it, intravenous glutathione isnt exactly convenient, appealing, or even accessible for most people
It is thought to improve tinnitus symptoms by increasing the blood circulation in the inner ear and brain, as well as protecting against free radicals
Under high temperatures, exogenous SA has been shown to induce the gene expression of PAL and lead to the accumulation of polyphenols in grapes, thus improve resistance to high temperatures [50]