Sorrow

Sorrow

norepinephrine

80%

melatonin

75%

dynorphin a (1-17)

70%

dynorphin a (1-13)

70%

dynorphin b

70%

alpha-neoendorphin

60%

beta-neoendorphin

55%

alpha-endorphin

40%

gamma-endorphin

40%

dopamine

35%

beta-endorphin

35%

met-enkephalin

35%

leu-enkephalin

35%

anandamide

35%

oxytocin

30%

gaba

30%

serotonin

25%