My experience is that difficulty concentrating is rarely the problem itself. It's usually a symptom of a problem. Rather than trying out tricks, your best bet

My experience is that difficulty concentrating is rarely the problem itself. It's usually a symptom of a problem. Rather than trying out tricks, your best bet is to tackle the problem head-on. First thing I would recommend is that if concentrating is a serious problem for you, you should see a doctor. Since this is something that's just come up in the last few years, it's likely not something like ADHD. However, this can be caused by a number of psychological ailments (anxiety, depression, etc) and physical ailments (diabetes, hypothyroidism, etc). That said, it's important to note that distraction is often a learned behavior. Do something to break the habit. Try programming in new places, don't use the computer you program on for personal browsing, etc. Also, it's amazing what a little exercise can do.