A lesson with a difference:

A physical education teacher, 57, died Friday morning during a gym class with students in the Yavneh high school yeshiva in Haifa.  ...

At around 8:30 a.m., the Carmel MDA station received a call that a gym teacher had collapsed in the middle of a class. One of the paramedics that arrived at the scene, Asher Golan, said, “When we came, the teacher was lying in a bad state, unconscious and without a pulse. We tried all kinds of resuscitation methods, including advanced ones such as electric shocks and medication, but we were forced to confirm his death.”

Golan maintains that the entire incident happened in front of the teacher’s students.

MDA said that the teacher most likely suffered from irregular cardiac activity, which caused cardiac arrest that led to his death.

MDA presumably being an Israeli healthcare acronym.  It is of course tempting to conclude from this that gym classes are a mortal threat to health.  But the real lesson is surely that ... people die, and the rest of us just have to live with this.