(Delacorte Press)

In his self-titled memoir, just out yesterday, pop singer ZAYN (aka Zayn Malik), formerly of One Direction, details his struggles with deep anxiety and what he calls an eating disorder, which directly led to his split with the boy band in 2014.

Z100 reports ZAYN told the AP:

When I look back at the images of myself from around November 2014, before the final tour, I can see how ill I was ... I realized that I wasn't eating as much just down to the amount of work that we were doing ... our schedule was kind of crazy so we were all over the place. It was just more down to losing track of … actually eating and being super busy and getting caught up with other things that 17 or 18-year-olds do, which normally entails them going out, drinking or partying.

In case you're keeping track, this memoir documents the life of a 23-year-old. It's humorous until you realize how much more living 23-year-olds are capable of doing in our world than they were in the past, no?