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The best sitting posture is the next one.

There's no perfect posture to hold for hours – spinal discs get nutrients only through movement, as they have no blood supply of their own. The WHO recommends adults get 150–300 minutes of moderate activity a week and break up long sitting periods regularly. Just standing up every 30 minutes helps.

Useful: An expensive chair is no substitute for standing up.

Source: who.int

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