The study shines a spotlight on the common struggles of teenage girls, with the research revealing that many girls feel low mood and anxiety is ‘normal’ for their age. But what do they think is ...

Mood changes may be related to certain phases of life, which involve hormonal changes. In women, this may include PMS, pregnancy, or menopause. But stress or health conditions may also be causes ...

What’s interesting to note is that the inverse wasn’t necessarily true — meaning there was no observed association between someone’s bad mood and their partner’s cortisol levels.