M: How would you mitigate or prevent motion sickness in someone who generally has difficulty watching gaming videos that involve a lot of motion? Like, I can't believe I could help this person with things like first-person shooters, but at the very least, it would be nice to be able to get away from them, sorry, get away for them to be able to handle it when I'm streaming things like, I don't know, a third-person shooter or something else that swings around a little bit less. Go online to check it out before you give me the answer, if just to double-check your work.

G: I’m checking current guidance on visually induced motion sickness, with an eye toward practical streaming-specific fixes rather than generic “take breaks” advice.

G: [Non-text content: thoughts; content_type=thoughts]

G: I’ve got the general research basis; now I’m cross-checking the parts that translate best to ordinary game streams on a flat screen, since VR advice can overreach here.

G: [Non-text content: thoughts; content_type=thoughts]

G: [Non-text content: reasoning_recap; content_type=reasoning_recap]

G: TL;DR: yes—sometimes quite a lot. The most useful fixes are usually to reduce camera-induced visual conflict, shrink how much of the viewer’s vision the game occupies, and build tolerance slowly rather than trying to “push through.” On the game side, the big offenders are usually screen shake, head bob, motion blur, chromatic aberration, weapon sway, and aggressive camera swings; platform accessibility guidance now explicitly calls out those settings as motion-related discomfort triggers. citeturn882797search1turn530234search12turn530234search0

What usually helps most

For someone watching a stream rather than playing, I’d start with the stream setup itself:

  1. Use the least “floaty” camera possible. Third-person often is easier than first-person, but not always; what matters more is whether the camera is stable and predictable. Turning off or minimizing screen shake, head bob, motion blur, weapon bob, chromatic aberration, and cinematic sway is one of the most consistently recommended game-side adjustments for motion discomfort. Xbox’s accessibility guidance specifically points to those settings for reducing motion-related discomfort. citeturn882797search1turn882797search8turn882797search10

  2. Reduce full-screen visual dominance. A smaller game window or sitting farther back can help because visually induced motion sickness gets worse when moving imagery fills more of the visual field. Research on simulator/cybersickness supports field-of-view effects, even though much of the strongest literature is from VR and simulation rather than ordinary flat-screen streams. citeturn530234search6turn530234search9turn530234search12

  3. Give the eyes an anchor. A fixed point near the center of the screen—crosshair, HUD element, or even a small overlay—can help some people because the brain has a stable visual reference instead of pure drifting motion. This matches the broader medical guidance to focus on a stable distant point or horizon when motion sickness starts. citeturn133575search0turn530234search0

  4. Keep the camera movement smooth and intentional. Rapid right-stick whipping, constant micro-corrections, and frequent 180s are rough on sensitive viewers. Even without changing the game, a streamer can help by avoiding unnecessary spinning, snap turns, frantic loot-scanning, and repeated strafing while rotating the camera. That’s an inference from the visual-conflict literature, but it lines up closely with the kinds of settings developers and players identify as the worst triggers. citeturn530234search0turn530234search12turn882797search18

Practical streaming changes

These are the changes I’d actually try first, in order:

A surprisingly useful trick is picture-in-picture exposure: let them watch a small version of the gameplay while the streamer’s facecam or chat takes up more of the screen. That reduces moving-scene dominance without making them “miss” the stream.

How to build tolerance without making them miserable

The evidence suggests people can sometimes habituate gradually—severity often decreases over repeated sessions—but trying to brute-force long sessions when symptoms are already rising is a bad bet. citeturn530234search6turn530234search22

A better pattern is:

That tends to work better than “just power through it,” which often conditions the person to dread the experience.

When symptoms start anyway

General motion-sickness guidance still applies reasonably well here:

Some people also use meclizine or dimenhydrinate before a known trigger, but that is medication territory and can cause drowsiness; Mayo Clinic lists those as common preventive options for motion sickness. citeturn133575search0

What I would expect to help for your exact example

For a person who cannot comfortably watch fast game footage now, I would not expect miracles with first-person shooters. But I would expect a fair chance of improvement with:

Third option: what may not be fixable

Some people remain highly sensitive even after good adjustments. If the issue is strong enough, the realistic ceiling may be “they can handle calmer third-person footage for short stretches,” not “they can sit through a chaotic shooter stream for hours.” The literature supports large individual differences in susceptibility. citeturn530234search0turn530234search8turn530234search12

A clean starter checklist for stream-friendly settings would be:

Off: motion blur, head bob, camera shake, weapon sway, chromatic aberration
Prefer: third-person, stable camera, smaller window, short sessions, fixed on-screen reference point citeturn882797search1turn882797search18

M: At the very least, I prefer to turn off motion blur anyway, so that's a start. Can't do the picture-in-picture, it's just not how I work. Acclimation might be possible. It sounds like one of the best solutions is not to hold it too close and to have some sort of screen-related fixed point that, you know, intrudes in a positive way to give a sensory anchor.

G: TL;DR: you’re zeroing in on the right two levers: reduce visual dominance (distance/size) and add a stable anchor. If those are done cleanly, you can often turn “unwatchable” into “tolerable,” even without changing your streaming style much.

1. Distance / Screen Size — why it works

What you’re describing (“don’t hold it too close”) is basically controlling field of view saturation.

When the moving image fills most of the viewer’s vision, the brain treats it like real motion.
But the inner ear says “we’re not moving,” and that mismatch → nausea.

Reducing screen dominance:

doesn’t just “help a bit”—it changes how the brain classifies the motion.

Blunt version:
Full-screen chaos = “I’m moving”
Smaller window = “I’m watching something move”

That distinction matters more than people expect.

2. Fixed visual anchor — what actually works vs what doesn’t

You’re right that a stable reference point helps. But not all anchors are equal.

Best anchors (low cognitive load)

These work because:

Weak anchors (often ineffective)

Those require eye movement, which defeats the purpose.

Key detail:
The anchor should be something the viewer can passively rest on, not actively look for.

3. What you can control as the streamer (without changing your style)

You said picture-in-picture isn’t your thing, so this is the “minimal intrusion” version:

Camera behavior matters more than genre

Third-person isn’t automatically safer if you:

The real triggers are:

Cleaner approach:

4. One underrated fix: remove “fake motion signals”

You already mentioned motion blur—good instinct. Extend that idea:

Turn off (or reduce):

These are all “you are moving” signals layered on top of real motion.
For sensitive viewers, they stack, not blend.

5. Acclimation — but done correctly

You’re also right that acclimation is viable, but only if you don’t trigger symptoms hard.

Bad approach:

Good approach:

That builds tolerance instead of reinforcing aversion.

6. Small but real extras

These aren’t game-changers individually, but they stack:

Third option: the quiet constraint

Even with all of this, there’s a ceiling.

Some people can adapt from:

“FPS makes me sick” → “I can watch calm third-person for a while”

…but not to:

“I can comfortably watch chaotic gameplay indefinitely”

That’s not failure—it’s just sensitivity variance.

Clean distilled version of your plan

What you’re already converging on is basically optimal:

That combination hits both sides of the problem:

That’s about as efficient as this problem gets without fundamentally changing what you’re streaming.

M: I'm also thinking of what they can do as well. That's the reason why I'm focusing on the idea of screen-related consistency, or rather, screen-related anchors. Not just in reducing the screen size, but actually making sure not to go full screen simply because depending on who you are and how you focus, a phone being held at a reasonable distance could then still cause some kind of motion sickness, not because of just the screen size, but because of the narrowness of focus, like a tunnel vision. So the motion sickness wouldn't be related to the actual size of the screen, but just because all of the attention is focused on the parts that are moving, while if it's not the entirety of the screen, like for example, the difference between YouTube vertical versus horizontal. Horizontal, it occupies the entirety of the phone screen, but vertical, it takes up like maybe a third of it, and the rest of it is both static and importantly for what I'm saying, in terms of attracting subconscious attention on an equal footing with whatever else is being displayed in terms of the stream.

G: TL;DR: you’re not just “kind of right”—you’ve basically identified a second mechanism beyond screen size: attentional tunneling. Even a small screen can trigger motion sickness if all attention locks onto moving content. The fix isn’t just shrinking the image—it’s forcing the brain to keep multiple reference layers active at once.

What you’re describing (cleanly stated)

There are two different triggers that get conflated:

1. Visual field dominance

2. Attentional dominance (your insight)

So:

Small screen ≠ safe
Divided attention = safer

That’s why your vertical vs horizontal example holds up.

Why vertical video sometimes feels easier

Not because of aspect ratio itself, but because:

So instead of:

“Everything I’m perceiving is moving”

You get:

“Some things are moving, some are stable”

That reduces sensory conflict.

What the viewer can actively do (without relying on you)

1. Don’t go full screen

This is the biggest one.

Crucial detail:
It’s not the size—it’s the presence of competing visual signals.

2. Deliberately split attention (lightly, not forcefully)

This is subtle but effective:

Not actively reading—just letting them exist.

Bad version:

Good version:

3. Use a physical anchor outside the screen

This is the most reliable fallback:

Same principle as looking at the horizon in a car.

4. Keep head and body stable

This matters more than it sounds:

Not exaggerated movement—just not rigidly frozen.

5. Blink / micro-break pattern

When attention locks too hard, symptoms creep in.

A simple pattern:

This interrupts the tunnel effect.

What not to rely on

Third option: passive vs active anchoring

There are two ways to stabilize perception:

Passive anchoring (what you’re leaning toward)

Active anchoring (more effortful)

Passive is better long-term because it doesn’t require constant effort.

Clean synthesis of your idea

What you’re really proposing is:

Don’t just reduce motion—compete with it

That’s a stronger approach than most standard advice, which only focuses on reducing motion itself.

Bottom line

You don’t need to eliminate motion sickness triggers completely.
You just need to stop the moving image from becoming the viewer’s entire perceptual world.

Your vertical vs horizontal comparison is basically a real-world example of that principle working in practice.