You feel exhausted all day, counting the hours until you can finally rest. But the moment your head touches the pillow, your brain seems to wake up. Suddenly, you remember an awkward conversation, worry about tomorrow's tasks or imagine problems that have not even happened. Why does this happen just when you want to sleep? The surprising answer is that your brain does not simply switch off when the lights go out. Several changes in your surroundings, attention and stress levels can make your thoughts feel louder at night.
