Burnout can feel like losing interest in everything because the brain’s reward and motivation systems get dampened after prolonged stress. Things that normally feel meaningful or enjoyable stop triggering the same emotional response, so everything starts to feel flat at once.
It’s not just tiredness, it’s a kind of emotional shutdown. When energy is low and stress has been high for too long, the mind conserves resources by reducing engagement, which makes multiple areas of life feel uninteresting at the same time.