Magnets and brains

Opposites attract and help repel depression

Magnetic stimulation is providing relief from severe depression after
only three treatments, providing an alternative to electroconvulsive
therapy for seriously ill patients.

The finding by researchers at The Alfred hospital means the
treatment can now be offered to patients needing rapidly effective
treatment, for example those who are suicidal or refusing to eat or
drink.

Transcranial magnetic stimulation involves applying a strong
magnetic field to particular areas of the brain, causing neurons to fire
and strengthening connections with other areas of the brain.

I'm not sure if they have any clear idea why it works, but it seems a big advance.