to stop paying attention
не обращать внимания (ne obrashchat' vnimaniya)
"He tends to space out during long meetings."
"Он склонен отключаться на длительных встречах." (On sklonen otklyuchat'sya na dliteln'yikh vstrechakh.)
excessive bureaucracy or rules
to recover and be healthy again
to stay awake all night to study or work
to be very busy or have many things to do
to rely on a single plan or source of success
to make a great effort to help or please someone