Seasonal affective disorder, also known as seasonal depression, causes depressive symptoms during only certain times of the year... and there's a pattern to it?!
Isn't that called storing up fat so you can 
sleep in a den to make it through winter?
Ah, da frisst man sich so viel Fett an, dass man
den Winter in einer Höhle schlafen kann.
¿Eso no es acumular grasas para dormir 
en una cueva durante el invierno?
¿Eso no es acumular grasas para dormir 
en una cueva durante el invierno?
Amasser de la graisse pour passer l’hiver
puis dormir dans sa tanière…
Non si fa per accumulare il grasso
 così da passare l'inverno?
Isso não é guardar gordura 
para hibernar no inverno?