Stop for a second. Where's your head right now? Not metaphorically. Physically. Is it sitting directly over your shoulders, balanced, easy, relaxed? Or is it drifting forward, chin down, neck long, shoulders hunched slightly up and in, like you're trying to see something that keeps moving away from you? If it's the second one — you're not alone. You're just doing what 4-6 hours of screen time a day eventually does to everyone. There's a term for it now: text neck. And before you roll your eyes at another trendy fitness phrase. Listen to the actual numbers. Your head weighs around 5kg when it's balanced directly over your spine. Tilt it forward just 15 degrees — the angle most people hold when looking at a phone — and the effective load on your neck muscles and cervical spine jumps to around 27kg. At 60 degrees forward — the angle of reading something in your lap — you're asking your neck to deal with the equivalent of 27kg hanging off the front of your face. Every. Single. Day. Is it any wonder people wake up with tight shoulders? Headaches that start at the base of the skull? A stiffness in the upper back that no amount of rolling, stretching, or hot showers ever quite shifts? Telling someone with text neck to 'sit up straight' is like telling a drunk person to walk in a straight line. The instruction is correct. The body just can't do it yet. Because posture isn't a habit. Not really. It's a structural and neurological pattern. The muscles at the front of your chest and throat have shortened and tightened from years of that forward position. The muscles at the back of your neck and upper back have lengthened and weakened, trying to hold everything up. Your brain has mapped this slumped shape as 'neutral.' So when you try to sit up straight, it doesn't just feel uncomfortable — it actually feels wrong. Your nervous system flags it as an unusual position and slowly, quietly, pulls you back to the slump. You're not lazy. Your body is just doing exactly what it's been trained to do.