In response to someone who posted that they were diagnosed with ADD and depression, I posted this below and received thank you emails from several people. I guess I was in my right mind that night:
There are some great books and studies out there that suggest constantly using things like smart phones and the Internet can cause ADD. Your mind gets addicted to short, pleasurable acts: checking email, seeing if someone Liked a post, reading short headlines, etc. Eventually you have a harder time concentrating on long-term acts like reading a book or watching a full movie or working on something for a prolonged time.
The good news is your mind is plastic. You can help reshape it, just as a head injury victim learns to reprogram the mind to perform tasks. You start by shaking yourself up and doing lots of new things. Tell yourself no Internet today, or don't take your phone with you. You limit and predetermine what you want to accomplish in a day. Like, today I want to read three chapters from this book. Or watch this full movie and really take in the meaning. If you have to, reward yourself with a look at your emails, etc. AFTER you've concentrated on an item for at least an hour or two. But don't make it a habit.
By the way, I think smart phones and people's addiction to them are really fucking up human relationships.