Intervals stay inside the microbreak window โ roughly 30โ90 sec breaks every 15โ30 min โ that research links to less discomfort. Worth remembering: moving and changing posture is what the evidence backs, more than any exact number.
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Scapular squeeze
Drop your shoulders down and back, then squeeze the blades together.
Strengthtarget โ upper back
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An in-between keeps the motion smooth. So does this.
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