The powerful thing that happens when the school day starts in the afternoon
washingtonpost.com
washingtonpost.com
School is socialized daycare, so parents can work. If a country can accept that, and stop forcing children to learn things at absurdly young ages, then maybe we can reach the point where children who need rest can simply arrive at school and sleep some more, comfortably and unreproachably. But I highly doubt that will ever happen in America.
Also, your reply implies we can just "make" MS/HS boys be interested in subject matter, which is kind of not how interests work. If boys are consistently under performing, it s a worthwhile venture to figure out which factors contribute to the performance, as well as which negative factors can be mitigated with basic changes (starting later, class length, etc).