Nostalgia can be one helluva drug. Our favorite memories often appear more technicolored and vivid than the experiences themselves. Meanwhile, some of our greatest works of literature and art warn us not to get stuck in the past, otherwise we might lose our sense of the present and stop chasing the future.
Now, a new study suggests that heavy marijuana users are more susceptible to holding onto negative emotions linked to memories, according to Live Science. That behavioral trait is also found in those with depression, and some preliminary research has backed up that data, showing links between cannabis usage and depression.
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The study focused around a psychological phenomenon called “fading effect bias.” As scientists have observed, humans tend to hold on more tightly to memories with a positive association than those with a negative one. Think of it as a