The goal of this design project is to develop a real-time biofeedback device that detects early signs of motion sickness and responds before symptoms become severe, while preserving user comfort and the ability to perform daily tasks. The device will integrate inertial measurement units (IMUs), which combine accelerometers and gyroscopes, to monitor environmental motion. It will also use physiological sensors to track indicators of stress and discomfort, including heart rate, heart rate variability, and galvanic skin response. When early indicators of motion sickness are detected, the system will activate mild, non-invasive neurostimulation and haptic feedback delivered through a wearable device. These responses aim to counteract the onset of motion sickness, helping sailors maintain comfort, focus, and operational effectiveness.