You are wrong about your ridiculous universal assertions. Ten pushups a day never hurt anybody? What basis do you have for this, other than ignorance? Even i

You are wrong about your ridiculous universal assertions. Ten pushups a day never hurt anybody? What basis do you have for this, other than ignorance? Even in the case of minimal physical exertion, neglecting muscular balance will lead to injury. Stretching, while good, will not overcome muscular imbalance. How many people do you know who do any back-specific exercise? As for posture, look at any of the photos that make it up on HN, such as photos of new startup locations. I haven't seen a single person in any of the photos sitting with proper posture. In over a decade of professional work experience, I have only ever seen one person sitting with correct posture, and he was an ex-Olympic athlete. Are you aware, by the way, that shirts are cut differently now than in the past? The shoulders are rotated forward, because that's how people carry themselves now. People, on average, simply do not maintain proper posture. It requires concerted effort, stretching, and, usually, focused weight training.