Bringing adderall into Japan carries a sentence of up to 20 years in prison under the Stimulants Control Law. Your prescription means nothing once you are on Japanese soil.

This is truly idiotic advice, and I don’t say that lightly.

It’s actually an interesting history that goes back to WWII. Japan distributed amphetamines to both soldiers and civilian workers to support the war effort. After the war, it turned into a serious problem of abuse. That in turn led to the country banning amphetamines outright in 1954-1955 and they have never really reconsidered.

Here’s an article from 1957 on the topic: https://www.unodc.org/unodc/en/data-and-analysis/bulletin/bulletin_1957-01-01_3_page003.html

Substandard heat management

Illiteracy in developed countries usually refers to functional illiteracy, not a complete unfamiliarity with letters and words.

Functional illiteracy means your ability to read and write is insufficient for you to function effectively in society. Functionally illiterate people may be able to read to some limited extent, but might read too poorly or slowly to process the types of written information they encounter on a day-to-day basis. These people would not be able to understand forms at the doctor’s office, the instructions on their taxes, the terms of credit card agreements, the contents of important mail, and other material that might be important for them to understand.