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Sitting all day, done properly

Page 5 of 6.

A line drawing of a posture brace laid flat with its straps open, shown beside an empty torso outline of the same width
Braces5 min read

Posture braces work, but not the way they are sold

The strap is sold as a corrective device and it is really a cue. That distinction sounds academic until you notice it decides whether anything survives taking the thing off.

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A line drawing of a torso in cross section with the layers of the abdominal wall traced as concentric outlines and nothing labelled
Core5 min read

A strong core is not what keeps you upright

The theory that one deep abdominal muscle stabilises the spine built an entire industry out of a study about timing. What holds you up at a desk was never strength in the first place.

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A line drawing of shoulders and neck seen from behind, with the trapezius traced as a plain outline and one small bundle of fibres marked inside it
Shoulders6 min read

Your shoulders are not tight, they are still switched on

The muscle across the top of your shoulder recruits the same small fibres first every time and releases them last. At a desk that means a few of them never get a break all day.

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A line drawing of a keyboard in side profile shown twice, once propped up at the back on its flip-out feet and once sloping gently away from the viewer
Keyboard6 min read

The feet on your keyboard are tilting it the wrong way

Almost every keyboard has flip-out legs at the back, almost everybody uses them, and they raise the end that should be lower. Folding them away is free, and it is a bigger change than the keyboard you were about to buy.

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A line drawing of a pair of spectacles seen from the front with three horizontal zones marked across the lenses, and a separate scale line running away from them
Glasses5 min read

A desk is the one distance your glasses were not made for

Distance lenses are ground for the road and reading lenses for a book. A monitor sits between the two, which is why so many people finish the day leaning in with their chin up.

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A line drawing of a single cup in flat elevation beside a horizontal timeline marked with evenly spaced points, each drawn smaller than the last
Caffeine6 min read

Your 3pm coffee is still in you at bedtime

Caffeine has a half-life of about five hours, so a mid-afternoon cup is a quarter of a cup at one in the morning. It does not produce alertness either. It hides the absence of it.

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