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11

Brinol et al (2009) suggest that your intuitions generalize. From the abstract: Building on the notion of embodied attitudes, we examined how body postures can influence self-evaluations by affecting thought confidence, a meta-cognitive process. Specifically, participants were asked to think about and write down their best or worse qualities while ...


9

The other answers cite minor effects related to your phenomena, but there's something more pervasive going on. In Carney et al's research report "Power Posing: Brief Nonverbal Displays Affect Neuroendocrine Levels and Risk Tolerance", it was found that "power posing" increases testosterone and cortisol levels which leads to, among other things, a greater ...


7

The answer is that we don't really know (for non-clinical populations). The relationship between weather and mood isn't straightforward, and the impact of weather on mood may be very small (on average). There have been some great experience-sampling studies that have looked at this. For example, in a sample of 1233, Denissen, Butalid, Penke, and van Aken ...


5

Yup; basically, it works. Varvogli and Darviri (2011) review research on diaphragmatic breathing, reporting: Deep breathing has been successfully used to decrease the fatigue associated with haemopoietic stem cell transplantation patients 55, to reduce the anxiety and asthma signs/symptoms of children with asthma 56, in the management of acute stressful ...


4

Overview: It seems like quite a bit of research has been conducted with experience sampling methodologies looking at daily variations in mood and activity. It is an interesting question as to how best tease out the effect on mood of time of day per se and activities associated with time of day on variations. It also seems like there are individual ...


3

Although not the question you asked, there has been at least one study looking at the influence of 'cave-like environments' on cognition - people are more prone to magical thinking/illogical beliefs (not their term) when placed in a dark, windowless environment. Rigoli et al (2013): Cave-like Environments Facilitate Magical Thinking Abstract The ...


3

From my personal experience I can tell you that the most confidence you get with strenthening of your shoulders (upper back), biceps and arms in general and most importantly the core (stomach). Bruce Lee (and other fighters would agree) used to say that core muscles are the most important in fight and who will win (if the fighters are similar) depends ...


2

Does sleep deprivation cause mood swings? Few studies have focused on mood changes in healthy subjects following sleep deprivation. It seems that there is evidence for sleep deprivation causing mood changes on the subsequent day, but there is no evidence for or against it causing mood swings. Hart et al. (1987) found significantly higher self-reported ...


2

Are you interested in mood, emotion, or affect? Or all three? Mood is considered a "diffuse" affective state, whereas emotions are "object specific." If you're interested in this distinction, look up Mathias Siemer's work. Gerald Clore also does work on mood. If you're interested in emotions, then this is a bit harder to tell you who to look up. There's ...


2

Several factors are proven to affect our experience of time. Those that differ from one day to the next include: Biochemistry affects our perception of time. Stimulants produce overestimates of time duration, whereas depressants and anesthetics produce underestimates of time duration. http://en.wikipedia.org/wiki/Time_perception Fear affects our ...


1

I found this twitter study of mood in the US (U.S. Mood Throughout the Day, as inferred from Twitter) and it clearly shows circadian variation of mood - happier in the morning and evening. I'm surprised to see such a dip towards lunch time though.


1

The most related experiment that I can think, is the one that people were willing to drink more water after seeing a happy face, because they evaluated the water as more positive. See full article bellow : Face Value: Hidden Smiles Influence Consumption And Judgment.


1

Nick's answer is very thorough. I would add that the physiological symptoms of high-stress (muscle tightening, accelerated heartbeat, shallow quick breath) can be reversed by controlling breath voluntarily. So, when you change these physical conditions, emotional state often follows.



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