Hand-drawn sketch: a slumped person at a desk, crossed out, with an arrow to a person sitting upright
from this… to this
for everyone who sits 7+ hours a day
Be kind to yourself at work.
Simple habits for your back, neck, wrists, eyes — and your long-term health.
By Arif Khan
Software Quality Architect & Senior Project/Program Manager · imarifkhan.com
Disclaimer: General guidance, not medical advice.
Which one are you?
be honest…
Sketch: person hunched at a desk with the head pushed forward toward the screen
Forward head
Sketch: person slumped low on a sofa with a laptop on the lap, chin dropped to chest
Sofa slump
Sketch: person lying on their stomach on a bed, propped on elbows over a laptop, neck bent back
Bed typing
Sketch, front view: person leaning heavily onto one armrest, one shoulder dropped lower than the other
Side lean
Sketch, front view: person sitting cross-legged on an office chair with feet tucked under, torso twisted to one side
Cross-legged
Sketch: person sitting back with the arm stretched far forward to reach a mouse at the back of the desk
Long reach
Sketch, top view: two forearms angled in toward a keyboard with both hands bent sharply outward at the wrists
Bent wrists
Red circles = where the strain builds up
— 2 —
Three hand-drawn heads on necks: upright, tilted 15 degrees and tilted 60 degrees, with red arrows growing longer to show the load on the neck increasing
Forward head = heavier head
12 lb
5 kg · upright
27 lb
12 kg · 15° tilt
60 lb
27 kg · 60° tilt
Source: Hansraj K., Surgical Technology International, 2014
— 3 —
What it costs you
Sketch: person hunched over a laptop on a desk, neck circled in red
+11°
more neck bend on a laptop than a desktop
Sketch: person reaching far for a mouse, elbow circled in red
26%
of heavy computer users had tennis elbow
Sources: Yu et al., Work, 2018 · Lateral epicondylitis study, Lahore (JRCRS, n = 296)
— 4 —
We sit more than we sleep
sitting
9.3 hrs
sleeping
7.7 hrs
Exercise alone doesn’t cancel it out.
Any movement beats none — even slow walking.
Sources: Nilofer Merchant, TED 2013 · Buckley et al., BJSM 2015 · WHO 2020
— 5 —
Spot the difference
Sketch: slumped posture with the head forward and the back rounded
Slumped
head forward · back rounded
Sketch: neutral posture with the back supported, elbows bent, feet flat and the screen at eye level
Neutral
ears over shoulders · back supported
Be kind to yourself at work · Arif Khan
— 6 —
Hand-drawn side view of the neutral sitting posture with joint angles marked: elbows 90 to 110 degrees, back reclined 100 to 110 degrees, knees 90 to 120 degrees, screen top at eye level
Your body, head to toe
top of screen ≈ eye level
≈ 64 cm / 25 in
90–110°
100–110°
90–120°
feet flat
Ears over shoulders
Shoulders dropped
Wrists flat & straight
Hips all the way back
Sit centered
Sources: OSHA workstation guidance · Cornell University Ergonomics Web · AAO
— 7 —
Hand-drawn desk setup with blue measurement lines for desk height, seat height, eye-to-screen distance and keyboard height
Measure your desk
A
B
C
D
A
51–71 cm
desk height · 20–28 in
B
38–56 cm
seat height · 15–22 in
C
≈ 64 cm
eyes to screen · 25 in
D
≤ elbow
keyboard & mouse, side by side
feet don’t reach? add a footrest
Sources: OSHA computer workstation eTool · Cornell University Ergonomics Web · AAO
— 8 —
Sources: Yu et al., Work, 2018 · Laptop use at a low table, sofa & bed, Work
— 9 —
Fix your laptop in 3 steps
Sketch: a laptop raised on a stack of books, with a red arrow pointing up
1
Raise it
then
Sketch: the raised laptop with a separate keyboard and mouse in front
2
Add keyboard & mouse
then
Sketch: a person sitting upright and relaxed at the finished setup
3
Sit back
sofa or bed? keep it short — that’s where necks bend most
Hand-drawn eye with a dashed line stretching across to a tree far away
The 20-20-20 rule
every 20 minutes
look 20 feet (6 m) away
for 20 seconds
Blink often
Screen at arm’s length
Blue-light glasses: not needed
Sources: American Academy of Ophthalmology · American Optometric Association
— 10 —
Hand-drawn clock with two five-minute slices shaded yellow, one every half hour, marking walking breaks
walk
walk
the one habit to keep
Every 30 minutes, walk for 5.
58%
smaller blood-sugar spikes after meals
Source: Diaz et al., Columbia University, 2023 — small lab study, 11 adults
— 11 —
Your day, in rhythm
every 20 min
Look away
20 seconds, 6 m off
every 30 min
Walk 5 min
water, stairs, stretch
every 2 hours
Real break
10–15 minutes
at lunch
Off-screen
eat, then walk outside
all day
Stand more
build to 2 hrs, then 4
+ every week: 150–300 minutes of brisk walking or similar
Sources: AAO · Columbia 2023 · Albulescu et al. 2022 · Buckley et al. 2015 · WHO 2020
— 12 —
Unplug & be present
47%
of waking hours, our minds wander
“a wandering mind is an unhappy mind”
Sketch: a phone left asleep on the desk next to an empty chair, while a person walks away
Phone stays on the desk
Take 1:1 calls walking
Hard stop at day’s end
Sources: Killingsworth & Gilbert, Science 2010 · Nilofer Merchant, TED 2013
— 13 —
Cheat sheet
screenshot it · stick it up
Set up once
Screen at eye level
Keyboard at elbow height
Feet flat, hips back
Laptop raised + keyboard
Every day
20-20-20 for your eyes
Walk 5 min every 30
Wrists straight, sit centered
Phone stays put on breaks
pain lasting weeks? see a physiotherapist or doctor
Be kind to yourself at work · Arif Khan
— 14 —
References & further watching
1. OSHA — Computer Workstations eTool (desk, chair, monitor guidance).
2. Cornell University Ergonomics Web, Prof. Alan Hedge — 12 tips for an ergonomic workstation.
3. American Academy of Ophthalmology — 20-20-20 rule and screen-use guidance.
4. Hansraj K. (2014). Assessment of stresses in the cervical spine. Surgical Technology International.
5. Yu Z. et al. (2018). Posture with tablet, laptop and desktop. Work 61(2).
8. Forearm and palm supports during mouse use. Applied Ergonomics (2014).
9. Atroshi I. et al. (2008). Carpal tunnel syndrome and computer use. BMC Musculoskelet Disord.
11. Diaz K. et al. (2023). Walking breaks study. Columbia University.
12. Buckley J.P. et al. (2015). The sedentary office. Br J Sports Med 49(21).
14. Albulescu P. et al. (2022). Micro-breaks meta-analysis. PLOS ONE 17(8).
15. Killingsworth M. & Gilbert D. (2010). A wandering mind is an unhappy mind. Science.
16. TED: Nilofer Merchant, Got a meeting? Take a walk · TED-Ed: Murat Dalkilinç, Why sitting is bad for you.
Be kind to yourself at work · Arif Khan
— 15 —
Hand-drawn sketch of a person walking
so, from today —
Be kind to yourself at work.
Sit well. Move often. Look up.
made with care by
Arif Khan
Software Quality Architect & Senior Project/Program Manager
General guidance, not medical advice. Ongoing pain? See a physiotherapist or doctor.