doi: 10.1016/S0891-5849(01)00530-5
Further study on the brain injury model of mice induced by Cadmium (Cd) showed that L-theanine could protect mice from Cd-induced neurotoxicity, which was achieved by reducing the level of Cd in the brain and plasma, inhibiting the death of neurons in the cortex and hippocampus, improving the activities of SOD, GSH, and CAT in the brain, and most importantly, significantly alleviating the hyperphosphorylation of tau protein Ser199, Ser202, and Ser396 (26)
Rarely, severe untreated hypothyroidism may lead to myxedema coma, an extreme form of hypothyroidism in which the bodys functions slow to a life-threatening point
F for insomnia The problem isnt that the evidence is all nonsense
[PubMed: 9638518] 316
If the dose is too low, the stimulation may be insufficient to make a noticeable difference