The thyroid gland produces thyroid hormones which controls how fast you burn calories and how fast your heart beats
Vocal Overuse Prolonged speaking or singing without adequate rest, common among teachers, singers, and public speakers
Shaking is forbidden
Glutathione, by contrast, is a tripeptide (three amino acids linked together) that neutralizes free radicals and supports cellular detoxification in the liver, lungs, and immune cells
doi:10.1002/tox.21795 Wang F, Li C, Liu W, Jin Y (2013) Oxidative damage and genotoxic effect in mice caused by sub-chronic exposure to low-dose volatile organic compounds
Furthermore, dizziness and light-headedness can be attributed to dehydration