A gait monitor comprising: a pair of movement sensors (501, 503) configured to be worn on the ears of a user, each of the pair of movement sensors (501, 503) detects movements of the respective side of the body; wherein the gait monitor is configured to indicate skew of the midsagittal plane of the user towards any one side of the body during movements of the body by differences in force component readings between the pair of movement sensors (501, 503); wherein: a) each movement sensor is configured to monitor a z-axis being the vertical axis to the ground, and an x-axis being a horizontal axis aligned to the front of the person; and the gait monitor is configured to disregard the z-axis data comprising a z-axis force component concurrent with an x-axis force component; or b) each movement sensor is configured to monitor a z-axis being the vertical axis to the ground, and a y-axis being a horizontal axis aligned to the person laterally; and the gait monitor is configured to disregard the z-axis data comprising a z-axis force component concurrent with a y-axis force component; or c) each movement sensor is configured to monitor a horizontal axis; and the gait monitor is configured to disregard any force component in the z-axis direction wherein one of the movement sensors (501, 503) detects movement in one x-axis direction and the other one of the movement sensors (501, 503) detect movement in an opposite x-axis direction a pair of movement sensors (501, 503) configured to be worn on the ears of a user, each of the pair of movement sensors (501, 503) detects movements of the respective side of the body; wherein the gait monitor is configured to indicate skew of the midsagittal plane of the user towards any one side of the body during movements of the body by differences in force component readings between the pair of movement sensors (501, 503); wherein: a) each movement sensor is configured to monitor a z-axis being the vertical axis to the ground, and an x-axis being a horizontal axis aligned to the front of the person; and the gait monitor is configured to disregard the z-axis data comprising a z-axis force component concurrent with an x-axis force component; or b) each movement sensor is configured to monitor a z-axis being the vertical axis to the ground, and a y-axis being a horizontal axis aligned to the person laterally; and the gait monitor is configured to disregard the z-axis data comprising a z-axis force component concurrent with a y-axis force component; or c) each movement sensor is configured to monitor a horizontal axis; and the gait monitor is configured to disregard any force component in the z-axis direction wherein one of the movement sensors (501, 503) detects movement in one x-axis direction and the other one of the movement sensors (501, 503) detect movement in an opposite x-axis direction a) each movement sensor is configured to monitor a z-axis being the vertical axis to the ground, and an x-axis being a horizontal axis aligned to the front of the person; and the gait monitor is configured to disregard the z-axis data comprising a z-axis force component concurrent with an x-axis force component; or b) each movement sensor is configured to monitor a z-axis being the vertical axis to the ground, and a y-axis being a horizontal axis aligned to the person laterally; and the gait monitor is configured to disregard the z-axis data comprising a z-axis force component concurrent with a y-axis force component; or c) each movement sensor is configured to monitor a horizontal axis; and the gait monitor is configured to disregard any force component in the z-axis direction wherein one of the movement sensors (501, 503) detects movement in one x-axis direction and the other one of the movement sensors (501, 503) detect movement in an opposite x-axis direction