Loneliness

Loneliness

melatonin

70%

norepinephrine

65%

dynorphin a (1-17)

60%

dynorphin a (1-13)

60%

dynorphin b

60%

alpha-neoendorphin

55%

beta-neoendorphin

50%

alpha-endorphin

45%

gamma-endorphin

45%

dopamine

40%

beta-endorphin

40%

met-enkephalin

40%

leu-enkephalin

40%

oxytocin

40%

anandamide

40%

gaba

40%

serotonin

30%