On the average, people go slumped with their smartphones between two to four hours a day. For some extreme cases, the average can be up to 10 hours.
And that awkward position can bring both temporary and long lasting damage to your spine according to a study by Surgical Technology International journal.
Your adult head on the average weights about 10 to 12 pounds, and that is also the same weight of the pressure put to your spine when you are sitting or standing upright with a perfect posture (that means you’re head is not tilted down and your back not slouched).
Tilting your head multiplies the apparent weight that your spine needs to support and this pressure isn’t doing you any good.
According to the study, tilting your head 15 degrees forward would increase the amount of stress to 27 pounds. Tilt 30 degrees and it becomes 40 pounds. Tilt 45 degrees and it becomes 49 pounds and if you move even further and tilt your head 60 degrees, it becomes 60 pounds. The worse news is a lot of people tilt their head at 60 degrees in order to focus on their smartphones.