The present invention relates to a device (2) for reducing weight in an individual,the device (2) comprising: a generator (42, 43) adapted to produce an electricalsignal； at least a first set of electrodes (6) comprising two electrodes (10,12) able to be connected to the generator (42, 43) and being intended to be fixedto a first vagus nerve (18) of the individual at a predefined distance one fromanother to apply the electrical signal to a portion (19) of the first vagus nerve(18) located between the electrodes (10, 12)； characterized in that it comprisesa short-circuiting switch (52) being adapted to short-circuit the electrodes(10, 12).
