Look at your diet: By cutting down on sugar and alcohol we can help to balance out yo-yoing moods. Both these substances increase a neurotransmitter called dopamine. Dopamine makes us feel rewarded and pleasurable but this doesn’t last forever and – once levels fall – we can feel lower than we did before. So as tempting as chocolate bars look, especially when we feel low, try to stay away from sugar. Eat oily fish twice a week, snack on chia…