Is it farther or further?
depletion de·ple·tion (dĭ-plē'shən)
The act or process of depleting.
The state of being depleted; exhaustion.
Removal of or reduction in a body substance, such as blood, a fluid, or a nutrient.
deplete de·plete (dĭ-plēt')
v. de·plet·ed, de·plet·ing, de·pletes
To use up something, such as a nutrient.
To empty something out, as the body of electrolytes.