How fast can someone become seriously ill?

I know someone who was their normal self, that can exercise for HOURS but was just extra sleepy...

Then less than two full days later, they couldn't get up out of their standard normal chair without assistance. 🥺

I'm scared for them...

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HumanEarth · F

Mercury does not stay in the body forever; it can be excreted over time, but the duration depends on the type of mercury and the level of exposure. For example, methylmercury (the kind they put in vaccines) can accumulate in the body and may take months to years to fully eliminate, while elemental mercury (photo below of this type) is cleared more quickly.