“Our brains evolved this fine-tuned balance over millions of years in which pleasures were scarce and dangers ever-present. The problem today is that we no longer live in that world. Instead, we now live in a world of overwhelming abundance. The quantity, variety and potency of highly reinforcing drugs and behaviors has never been greater. In addition to addictive substances like sugar and opioids, there is also a whole new class of electronic addictions that didn’t exist until about 20 years ago: texting, tweeting, surfing the web, online shopping and gambling.”

Source : Digital Addictions Are Drowning Us in Dopamine – WSJ