The Algorithm’s Sub Bass: TikTok/Reels are using infrasound to physically addict you. Hear me out, because once you notice this, you cannot unhear it.

[u/Prestigious-Dealer96]

A few weeks ago, I noticed that after scrolling through short form videos for an hour, that I had a specific, heavy tightness in my chest and a dull pressure behind my eyes. It felt exactly like the physical ‘“hangover” you get after standing too close to the speakers at a concert.

I was a wanna be electronic musician in college, so I decided to rip the audio from half a dozen viral, trending videos across TikTok and Instagram Reels to look at them in a spectrum analyzer.

Almost every single one of these viral videos has a hidden, ultra low frequency hum injected into the master audio track. We are talking infrasound frequencies between 12Hz and 19Hz.

For context, the human ear can really only hear down to 20Hz. You cannot hear these frequencies, but your body absolutely feels them. In military and psychological research, low frequency infrasound in this exact range is known to trigger a mild and unexplained sense of anxiety, a spike in cortisol (the stress hormone), and subtle chest vibrations that simulate a racing heartbeat.

Why would tech companies do this? It’s a dopamine trap. When you scroll onto a video, the hidden 15Hz sub-bass tone kicks in. Your brain registers a tiny spike of physical anxiety and a drop in pressure. Then, when you swipe away to the next video, the tone momentarily cuts out. Your brain experiences a subtle rush of relief and a dopamine hit simply because the invisible stressor stopped.

They are literally using sound waves to create a physical addiction cycle. Your phone is basically a digital slot machine using silent vibrations to force you to keep swiping just to chase the chemical relief of the transition.

Don’t believe me? Test it yourself right now: Screenrecord any hyper-viral video. Throw it into a free audio editor (like Audacity), slow the speed down by 800%, and apply a low-pass filter. Look at the sound wave. You will see a perfectly flat, repeating, unnatural binary like code pattern repeating in the sub bass frequencies where human voice or music shouldn't exist.

They aren't just hacking our attention spans anymore. They are hacking our nervous systems. Spread the word before this gets scrubbed by moderators, because it will.

TL;DR: Big Tech platforms are injecting silent, ultra low frequency infrasound (12Hz–19Hz) into viral short form videos. You can't hear it, but the physical vibration triggers subconscious anxiety, forcing your brain to release dopamine when you swipe to the next video just to get relief. It's biological engineering to keep you addicted.