Our distant relatives got this one right. Bananas are a good source of tyrosine and vitamin B6.
L-Tyrosine is an amino acid that produces noradrenaline and dopamine, which can help with stress, especially for the acutely stressed among us who tend to deplete their noradrenaline faster and are prone to causing broken plates and windows.
L-tyrosine can also help with preserving stress-induced memory deficits, like forgetting to go to the workplace you hate so much.
Vitamin B6 maintains high spirits. Bananas actually contain 22% of your recommended daily value of B6. Bananas are also a good source of potassium.