An electrical heating element (1) comprises a core string (2) and an electrically conductive wire (4), which is wrapped about the core string (2), follows the core string (2) and is electrically insulated with respect to the core string (2). A path (10) defined by the core string (2) includes a sequence of alternating first (11) and second (12) sections, wherein the wire (4) is wrapped in a pitch which, in the first sections (11), is generally smaller than in the second sections (12). The electrical heating element (1) can be used, e.g., in a heatable seat assembly.