There have been numerous studies about why we get in bad moods but now, psychologists generally believe a bad mood originates due to something they call ‘ego depletion’. This idea, was founded by researcher Roy Baumeister, and it suggests when people use up all of their willpower to avoid temptations, they drain all of their cognitive resources. The effect is that if you’re withholding something, for example food because you are on a diet, or wanting to yell at someone for giving you poor customer service, it can drain your brain and makes you very irritated. To put it simply, the harder you push your mind to avoid something, you are more likely to get irritated.

Why not look at it as a type of stress-threshold. If you pass the line, you get in a bad mood which may manifest itself as anger, irritability or cynicism.Each of them cause your blood pressure to change. They are also able to boost your level of the stress hormone cortisol. This makes you get even more flustered.

In some instances, it’s also a manifestation of a severe stress response. It is frequently a reason for a terrible mood as it increases blood pressure, stops digestion and elevates your heart rate. If nothing else, it makes you feel tired and somewhat cranky after a very long period.

Happily, getting over a terrible mood is not hard if you are ready to do a couple of things. We are assuming that this is a temporary difficulty, not a long-lasting case of melancholy, but still, a range of these suggestions can cheer up even the very down-and-out.

Eat: Theoretically, eating whatever you like can raise your mood, but food functions in several ways. To begin with, it regenerates nourishment you have lost throughout the day. If you are in a terrible mood because you have not eaten, your blood glucose level is reduced, but you should feel much better after a few snacks. As it happens, there is also a possibility fatty acids may have a beneficial impact on emotion. If fatty foods are not for you, eating hot foods are proven to release endorphins, the same lift you get out of exercising. Fundamentally, eating may often reverse a terrible mood, but you should be careful not to overdo it.

Exercise: Exercise increases endorphins and may naturally change a mood from poor to good in a matter of a couple of minutes. You can get an endorphin increase from exercise by simply exerting yourself a little. If your breathing starts to become laboured, the body releases endorphins that are related to feelings of pleasure. The euphoria is not long lasting, but it ought to be sufficient to cause you to forget about the man who cut you off in traffic.

Listen to Music: Music can activate a release of dopamine in your brain. Music usually gives us a sense of pleasure and may be enough to turn a frown up before the end of a three-minute pop song.