The human brain uses up about 20% of the calories we eat. Some kids of Functional neuroimaging scans light up areas of the brain with a higher metabolic rate, which shows which parts of the brain are currently in use.
This translating and poof-reading makes me tired, and I'm sure the
language areas are lighting up like Christmas trees, and metabolising like mad.
So translating twisted Spanish burns calories.
Therefore I can go and eat some chocolate.
Yup, that's logical.