February 2025 | Posture & Ergonomics
Every time you look down at your smartphone, the weight on your cervical spine increases dramatically. At a neutral position, your head weighs about 5 kg. Tilt it forward 15 degrees, and the effective weight jumps to 12 kg. At 60 degrees — a common angle for texting — your neck is carrying 27 kg of effective load.
No wonder tech neck (also called text neck) has become an epidemic in Hong Kong, where the average adult spends over 5 hours per day on their phone.
Tech neck refers to the chronic strain and pain caused by prolonged forward head posture while using phones, tablets, or laptops. The forward head position forces the muscles in the front of your neck to tighten and the upper back muscles to overstretch and weaken.
The golden rule: your phone screen should be at eye level. Raise your phone or tablet rather than dropping your head to meet it. For laptops, use a stand and an external keyboard. Your ears should align with your shoulders when viewed from the side.
This is the single most effective exercise for tech neck. Sit or stand with your back against a wall. Gently pull your chin straight back — like making a double chin. Hold for 5 seconds, relax. Do 10 repetitions, 3 times a day. This strengthens the deep neck flexors that keep your head in proper alignment.
Stand in a doorway with your forearms on the frame at shoulder height. Gently lean forward until you feel a stretch across your chest and front shoulders. Hold for 30 seconds. Tight chest muscles pull your shoulders forward and contribute to poor posture.
Every 20 minutes, look at something 20 feet (6 metres) away for at least 20 seconds. This gives your eye muscles and neck a break from sustained contraction. Combine this with a posture reset and you have a powerful prevention routine.
If you have persistent neck pain that radiates to your arm or hand, or if you experience headaches more than 3 times a week, consult a physiotherapist. They can use manual therapy to release tight muscles, mobilise stiff joints, and prescribe a personalised exercise programme.
Disclaimer: This article is for informational purposes. Consult a registered physiotherapist for a proper diagnosis and treatment plan.