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Resources (e.g., nutrients, energy, antioxidants) are limited, thus allocation of a key resource to one trait, such as resistance against viral infection, means that less can be allocated to other functions that might be important in terms of Darwinian fitness (e.g., fertility)
Whether they end up vomiting and missing school or work just depends on the person
In the immune system, glutathione plays a critical role in controlling the production and activity of immune cells such as T cells and natural killer cells
Unwilling to accept a compound with zero published human safety data of any kind
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