to get new skills
acquire new skills
to become unconscious for an indefinite time
fall into a coma
suddenly think of a good idea
have a brainwave
to pass out
lose consciousness
to think very hard or for a long time about sth
rack your brains
to wake up again after being unconscious (after being hit on the head, etc)
regain consciousness
to be good at remembering something
have a good memory for
to be very bad at remembering things
have a memory like a sieve
