If I were to guess, probably heat stroke due to rising temperatures. Which, if true, would also be worsened by having more data centers

Stress or anxiety can also cause dizziness.

Nothing solid. Imma about to put on my tinfoil hat and start looking at the Russian satellites. Realistically I'm way over my head here and I hope someone else notices the weird trend. The only reason I started looking around is because I feel slightly dizzy for the past 3 months and decided to ask around. Surprisingly alot of people are experiencing the same thing. I'm from Baltics. All health checkups return perfectly fine.

Maybe rising CO2 levels? Just guessing.

But it really doesn't.

You could replace number of data centers with total number of Taylor Swift songs released and get that same idea. Taylor Swift music existing causes dizziness, and it must be stopped.

Or you could replace number of data centers with "Sean Connery alive?" and decide dizziness has been going up since he died. He was somehow guarding the world against becoming dizzy, and we lost that protection when he passed. :/

Putting two random things on a chart like this doesn't actually show or imply anything, other than that the person who made it likely wants you to believe there's some kind of connection.

Causation is correlated with causes

data centres have been around for decades as well, I believe it's the new hyper scaler data centres that possibly have this infrasound thingo

But that's nothing related to a google trend graph of dizziness and data centres, that's as the OP says, random

These are great:

https://www.tylervigen.com/spurious-correlations

When datacenters are being powered by unregulated natural gas generators then it has a massive impact

Where I live there's a refinery, about ten years ago they changed the burners on the tall torches for a new kind that burn apparently cleaner but they make a lot more noise. It is 6km away with no direct line of sight, the low pitch rumble makes some of the windows in my house rattle.

https://youtu.be/_bP80DEAbuo?is=V2TgYgy6_cqwgCYC

A very informative video

So, you may have noticed that 5 GHz Wi-Fi has smaller coverage area than 2.4 GHz.

It works that way all the way down to infrasound, which is <20 Hz, and natural examples would be whale communications (thousands of kilometers) or volcano eruptions (infrasound wave from Krakatoa eruption lapped around entire globe multiple times).

As for human factors - basically any big industrial tech object is gonna be the source of ultrasound. So it's kind of safe to assume that infrasound from data centers may be "heard" from at least several kilometers away. Dunno how it compares to refineries and power substations - but they're also source of that.

That doesn't explain the huge spike over the past 6 months, and cold season has been over for about 5 of those months.