Lightly clench your fist, now keep it clenched for 15 minutes. At first you will feel nothing, but as time goes on your muscles will tire and give out, and this otherwise innocuous behavior becomes quite painful. Whenever a muscle or group of muscles are tensed and stay tensed, they will soon give out and recruit other muscles to literally take up the slack, resulting in an equally literal pain in the neck. This observation is called the Cinderella Effect, named after the fairy tale character who was first to rise and last to sleep, all the while slaving about the house meeting the demands of her evil stepmother and half witted step sisters.
So what's the solution? Simple, just put off considering any distractions to certain times of the day, and if you feel overworked, just sit and rest. Indeed, prove it to yourself by simply performing a daily count of all the instances during the day that you surrender to the clarion call of web surfing, chatting, and the myriad distractors that make modern life so swell. You will soon note that relaxation occurs when distractions are held to a minimum. This of course is not rocket science, not because it is obvious but because it has not been logically proven. But as a practical matter, it is all you need.