An electromagnetic device adapted for stimulating tissues, particularly brain tissues, of a subject with pulsed electromagnetic fields, PEMF, with the aim of treating psychiatric disorders, such as depression disorders and/or sleep disorders, the electromagnetic device comprising: a band-shaped body structure, a plurality of coils and drive electronics, the drive electronics being configured for driving the plurality of coils by providing alternating current, AC, pulses to the plurality of coils, the plurality of coils being configured for, in operation and in reaction to the AC pulses received from the drive electronics, providing a stimulus in the form of PEMFs to the tissue of a subject, wherein the plurality of coils is provided in and/or on the band-shaped body structure distributed along a length of the band-shaped body structure such that when the band-shaped body structure is mounted on the head of a subject in a head-band-like manner, coils are arranged along all of the circumference of the head of the subject, and such that at least one coil (3") of the plurality of coils is arranged adjacent to the frontal region of the brain of the subject such as to enable, when the coils are in operation, stimulating the frontal region of the brain of the subject, and that other coils of the plurality of coils are arranged adjacent to other regions of the brain such as to enable, when the coils are in operation, stimulating other regions of the brain of the subject, and characterized in that the drive electronics is configured to operate the plurality of coils such that coils, which when the band-shaped body structure is mounted on the head of a subject are arranged on mutually opposite positions of the head of the subject, are operated in mutually opposite phases. a band-shaped body structure, a plurality of coils and drive electronics, the drive electronics being configured for driving the plurality of coils by providing alternating current, AC, pulses to the plurality of coils, the plurality of coils being configured for, in operation and in reaction to the AC pulses received from the drive electronics, providing a stimulus in the form of PEMFs to the tissue of a subject, wherein the plurality of coils is provided in and/or on the band-shaped body structure distributed along a length of the band-shaped body structure such that when the band-shaped body structure is mounted on the head of a subject in a head-band-like manner, coils are arranged along all of the circumference of the head of the subject, and such that at least one coil (3") of the plurality of coils is arranged adjacent to the frontal region of the brain of the subject such as to enable, when the coils are in operation, stimulating the frontal region of the brain of the subject, and that other coils of the plurality of coils are arranged adjacent to other regions of the brain such as to enable, when the coils are in operation, stimulating other regions of the brain of the subject, and characterized in that the drive electronics is configured to operate the plurality of coils such that coils, which when the band-shaped body structure is mounted on the head of a subject are arranged on mutually opposite positions of the head of the subject, are operated in mutually opposite phases.