A blow makes the brain wobbly

A hard blow to the head makes the brain collide with the inside of the skull, and the soft organ briefly changes shape, so the neurons are drained of energy. en

0 MINUTES

The blow disfigures the 1 brain, so the neurons are stretched and twisted.

UP TO 3 MINUTES

The neurons send power2 ful, uncontrolled signals and are drained of energy.

30 MINUTES

The brain makes every effort 3 to refill energy stores. The process causes waste products.

UP TO SEVERAL DAYS

The neurons start to regain 4 their chemical balance, and the memory returns.