Many of us know that feeling when we wake up in the night, start thinking about something completely trivial – and suddenly can’t get back to sleep. No matter what we do – even if we count a whole flock of sheep – it takes at least an hour before we drift off again. Perhaps even worse is not being able to fall asleep at all! We toss and turn, trying to banish even the most innocent thought, but sleep just won’t come. Of course, there are sleeping tablets – but let’s face it – this has nothing to do with a healthy lifestyle. And anyone who claims that alcohol helps is in a similar boat. There’s even a risk of developing a dangerous addiction here! Fortunately, there is research that has long focused on the topic of quality sleep, and this has yielded insights into two hormones: serotonin (the hormone of happiness and good mood) and melatonin (the hormone of sleep and a regular circadian rhythm). So, scientists have sought to ensure sufficient levels of these hormones in the