bananas contain tryptophan which, when ingested, increases levels of serotonin in the body (the same effect as Prozac). This can lead to various mood-altering effects (Leathwood and Pollet, 1982) including a reduction in depression (Sainio et al., 1996). As well, Xiao et al. (1998) found that eating just two bananas a day for three days increased levels of serotonin in the blood by 16%.

how much do they cost over there? over here you need to take out a mortgage to afford half a dozen

I've been eating a banana every day for breakfast for the last week and I've been feeling shitty.

Who's gonna eat 2 or more a day though? They're kinda high on the calorie list, you might as well have some chocolate.

while chocolate has some beneficial things in them, id pick bananas; they are rich in potassium.

I eat bananas about three times a week.