The present invention introduces a novel apparatus (5) for providing magnetic stimuli to the human brain, the apparatus (5) comprising a casing (4) and at least one coil winding (1) adapted to carry electrical current and enclosed within the casing (4) as well as cooling means (2) situated in thermal connection with the coil (1) and comprising a body made of electrically conductive and non-magnetic material so that the mutual inductance between the coil (1) and the cooling means (2) is essentially zero.
