Stress Management with Real-time Bio-signal Biofeedback

The goal of this clinical trial is to learn if the real-time bio-signal monitoring device (Neuronicle FX2 device), combined with mindfulness-based cognitive therapy (MBCT), helps manage stress and improves symptoms of mood disorders, such as depression and anxiety. The main questions this study aims to answer are: * Does real-time bio-signal feedback mindfulness using the Neuronicle FX2 reduce perceived stress in participants with mood disorders? * Does it lead to improvements in depressive and anxiety symptoms? Researchers will compare participants receiving real-time biofeedback with the Neuronicle FX2 to those receiving no feedback during mindfulness sessions to see if the device enhances the effectiveness of stress management and symptom improvement. Participants will: * Undergo mindfulness-based cognitive therapy (MBCT) once a week for 8 weeks. * Half of the participants will receive real-time biofeedback using the Neuronicle FX2 device during mindfulness sessions, while the other half will not be provided biofeedback. * Visit the clinic every week for their mindfulness sessions and assessments. * Wear the Neuronicle FX2 device during mindfulness exercises, which will measure brainwave activity (EEG) and heart rate variability (HRV). * Participate in assessments before, during, and after the program (8wks, 16wks) to evaluate their stress, depression, and anxiety levels.