Damper for damping a movement along a middle-longitudinal-axis, in particular for damping a seat in a vehicle, comprising a. an outer housing extending along the middle-longitudinal-axis, b. a guiding and sealing unit (5; 5a; 5b; 5c) closing the outer housing at a first housing end, c. a piston rod guided out of the first housing end sealed by the guiding and sealing unit (5; 5a; 5b; 5c), d. an inner housing arranged in the outer housing, which surrounds a working chamber, e. a damping fluid located in the working chamber, f. a second housing end opposite the first housing end, g. a piston guided in the inner housing along the middle-longitudinal-axis and secured to the piston rod, i. wherein the piston divides the working chamber into a first part-working chamber facing the first housing end and a second part-working chamber facing the second housing end, and ii. wherein the piston comprises at least one throughflow channel for connecting the part-working chambers (15, 16), h. an equalizing chamber arranged between the inner housing and the outer housing and i. a throttling channel (46; 46a; 46b; 46c) integrated into the guiding and sealing unit (5; 5a; 5b; 5c) for a fluid throttling connection between the working chamber and the equalizing chamber, wherein the throttling channel (46; 46a; 46b; 46c) has i. a length and ii. a cross-sectional area comprising an internal width (d), iii. is oriented at least in sections at right angles to the middle-longitudinal-axis and is configured to be helical about the middle-longitudinal axis, characterized in that the throttling channel (46; 46a; 46b; 46c) has an opening angle of greater than 360°. a. an outer housing extending along the middle-longitudinal-axis, b. a guiding and sealing unit (5; 5a; 5b; 5c) closing the outer housing at a first housing end, c. a piston rod guided out of the first housing end sealed by the guiding and sealing unit (5; 5a; 5b; 5c), d. an inner housing arranged in the outer housing, which surrounds a working chamber, e. a damping fluid located in the working chamber, f. a second housing end opposite the first housing end, g. a piston guided in the inner housing along the middle-longitudinal-axis and secured to the piston rod, i. wherein the piston divides the working chamber into a first part-working chamber facing the first housing end and a second part-working chamber facing the second housing end, and ii. wherein the piston comprises at least one throughflow channel for connecting the part-working chambers (15, 16), i. wherein the piston divides the working chamber into a first part-working chamber facing the first housing end and a second part-working chamber facing the second housing end, and ii. wherein the piston comprises at least one throughflow channel for connecting the part-working chambers (15, 16), h. an equalizing chamber arranged between the inner housing and the outer housing and i. a throttling channel (46; 46a; 46b; 46c) integrated into the guiding and sealing unit (5; 5a; 5b; 5c) for a fluid throttling connection between the working chamber and the equalizing chamber, wherein the throttling channel (46; 46a; 46b; 46c) has i. a length and ii. a cross-sectional area comprising an internal width (d), iii. is oriented at least in sections at right angles to the middle-longitudinal-axis and is configured to be helical about the middle-longitudinal axis, i. a length and ii. a cross-sectional area comprising an internal width (d), iii. is oriented at least in sections at right angles to the middle-longitudinal-axis and is configured to be helical about the middle-longitudinal axis,