An electrode apparatus (100, 600, 1300), the apparatus comprising: - a first electrode portion (403, 1303, 1403, 1503) having an upper surface and a lower surface; - a second electrode portion (105, 1305, 1405, 1505) having an upper surface and a lower surface; - a first active region (133, 433, 1333, 1533) on the lower surface of the first electrode portion (403, 1303, 1403, 1503) configured to deliver energy to the user's skin, the first active region (133, 433, 1333, 1533) comprising: a first conductive layer, a weakly conductive layer covering the first conductive layer, a sacrificial conductive layer covering the weakly conductive layer, and a hydrogel (37, 2009, 2205, 2209) covering the sacrificial layer, wherein the weakly conductive layer has a higher resistivity than the first conductive layer and the sacrificial layer; - a second active region (135, 1335, 1535) on the lower surface of the second electrode portion (105, 1305, 1405, 1505) configured to deliver energy to the user's skin; - a flexible member connecting the first and second electrode portions (103, 1303, 1403, 1503, 105, 1305, 1405, 1505); and - a first connector (115, 2215) and a second connector (117, 2217) that are configured to couple to a wearable electrical stimulator, wherein the first connector (115, 2215) is in electrical communication with the first active region (133, 433, 1333, 1533) and the second connector (117, 2217) is in electrical communication with the second active region (135, 1335, 1535) wherein the electrode apparatus (100, 600, 1300) is configured for supporting a wearable electrical stimulator on a user's head or head and neck wherein: - the electrode apparatus (100, 600, 1300) is a cantilevered electrode apparatus (100, 600, 1300), - the flexible member is a flexible body having a front side opposite a back side; - the first electrode portion (403, 1303, 1403, 1503) is at a first end region of the body; - the first active region (133, 433, 1333, 1533) is on the back side of the first electrode portion; - the first connector (115, 2215) extends proud from the front side of the first electrode portion (403, 1303, 1403, 1503); - the second connector (115, 117, 2215, 2215') extends proud from the front side of the first electrode portion (403, 1303, 1403, 1503); - the second electrode portion (105, 1305, 1405, 1505) is at a second end region of the body that is separated from the first electrode portion (403, 1303, 1403, 1503) by at least two inches; and - the second active region (135, 1335, 1535) is on the back side of second electrode portion (105, 1305, 1405, 1505); - the first and second connectors (115, 117, 2215, 2215') are configured to electrically connect the apparatus to the electrical stimulator. - a first electrode portion (403, 1303, 1403, 1503) having an upper surface and a lower surface; - a second electrode portion (105, 1305, 1405, 1505) having an upper surface and a lower surface; - a first active region (133, 433, 1333, 1533) on the lower surface of the first electrode portion (403, 1303, 1403, 1503) configured to deliver energy to the user's skin, the first active region (133, 433, 1333, 1533) comprising: a first conductive layer, a weakly conductive layer covering the first conductive layer, a sacrificial conductive layer covering the weakly conductive layer, and a hydrogel (37, 2009, 2205, 2209) covering the sacrificial layer, wherein the weakly conductive layer has a higher resistivity than the first conductive layer and the sacrificial layer; - a second active region (135, 1335, 1535) on the lower surface of the second electrode portion (105, 1305, 1405, 1505) configured to deliver energy to the user's skin; - a flexible member connecting the first and second electrode portions (103, 1303, 1403, 1503, 105, 1305, 1405, 1505); and - a first connector (115, 2215) and a second connector (117, 2217) that are configured to couple to a wearable electrical stimulator, wherein the first connector (115, 2215) is in electrical communication with the first active region (133, 433, 1333, 1533) and the second connector (117, 2217) is in electrical communication with the second active region (135, 1335, 1535) - the electrode apparatus (100, 600, 1300) is a cantilevered electrode apparatus (100, 600, 1300), - the flexible member is a flexible body having a front side opposite a back side; - the first electrode portion (403, 1303, 1403, 1503) is at a first end region of the body; - the first active region (133, 433, 1333, 1533) is on the back side of the first electrode portion; - the first connector (115, 2215) extends proud from the front side of the first electrode portion (403, 1303, 1403, 1503); - the second connector (115, 117, 2215, 2215') extends proud from the front side of the first electrode portion (403, 1303, 1403, 1503); - the second electrode portion (105, 1305, 1405, 1505) is at a second end region of the body that is separated from the first electrode portion (403, 1303, 1403, 1503) by at least two inches; and - the second active region (135, 1335, 1535) is on the back side of second electrode portion (105, 1305, 1405, 1505); - the first and second connectors (115, 117, 2215, 2215') are configured to electrically connect the apparatus to the electrical stimulator.