Individuals experiencing deprivation or sensitivity to weather can be profoundly negatively influenced by a lack of positive environmental cues.

“This is important because what this says is that our ability to create states of happiness is dependent on our environment but also requires effort from us. That also makes sense as to why when we are under conditions of deprivation. So it could be social deprivation or financial deprivation. Or even for people that are very sensitive to whether. There are a certain number of individuals, about 30% of people, who report feeling very, very low under conditions where the sky is overcast. Especially if it's been overcast for a number of days. The so-called seasonal affective depression.”