Japan's Health, Labour and Welfare Ministry recommends nine to 12 hours of sleep for elementary students, and eight to 10 hours for junior and high school students, to maintain good health.

As of June 30, top Pokémon TCG cards like Pikachu ex and Latias ex from Surging Sparks are down over 50%, while Crown Zenith chase cards like Giratina VSTAR are up as much as 24%. Here's why ...