kay before I get into this, I need to say this clearly: bonesmashing is fucking stupid and you should not do it. I'm about to explain the biomechanics of why repeatedly hitting your bones with objects appears to make them thicker, but understanding why it works does not mean it's a good idea or that you won't end up with permanent nerve damage, arthritis, or a collapsed hand.

THREAD MUSIC

seriously. don't do this. it works, but you look like a retard. when i tell you not to do it, i mean do not get caught doing it, it literally means complete social death. it is akin to taking a chair and rope and fucking killing yourself, but regarding your social life.

Part 1: What Happens When You Smash Your Bones (The Bad Version)

okay so imagine you're a bonesmashing enthusiast (which again, you shouldn't be). you take a mallet or a rock or whatever and you start repeatedly striking your zygos, chin, or brow ridge with increasing force. what actually happens inside the bone?

first hit: ouch. pain receptors (nociceptors) fire off like crazy. the cortical bone elastically compresses. stress waves propagate through the tissue. it probably swells within hours.

repeated hits over weeks: the swelling becomes less dramatic because your nerve endings start to get desensitized. but the bone itself is experiencing constant microfractures—tiny cracks in the matrix and around the cement lines between osteons. it's like your bone is being continuously broken at a microscopic level.

what the bone cells "think" is happening: the osteocytes (bone cells chilling in their little cavities) are getting mechanically disturbed every time you hit. their cell membranes stretch, fluid shifts around them, and their cytoskeletons experience tension. from a purely mechanical standpoint, the cells do detect this as a load-bearing event, even though it's an incredibly inefficient one.

Part 2: The Remodeling Cascade (Why Thickness Increases)

the microdamage triggers the bone remodeling unit (BMU). basically, your bone has these little cleanup crews called osteoclasts that resorb damaged bone, and osteoblasts that lay down new bone. normally, these are in balance—you resorb about as much as you build.

but when you're constantly creating microdamage, the BMU goes into overdrive. the inflammatory cascade kicks in. inflammatory mediators like TNF-α and IL-6 are released. these molecules reach the osteocytes and osteoblasts and basically signal "hey, something's wrong, rebuild this area."

here's the kicker: because you're repeatedly damaging the tissue, the remodeling doesn't have time to fully settle. instead of reaching equilibrium (resorption = formation), the system trends toward net bone formation. new bone gets laid down faster than old bone is resorbed. over months, this accumulates as measurably thicker cortical bone.

additionally, the new bone that gets laid down during remodeling is often denser than the original bone, because the remodeling process can incorporate more minerals. so you don't just get thicker bone; you get denser bone.

the pain reduction: your nociceptors become less responsive through a process called central sensitization (or in this case, desensitization). your nervous system literally learns to suppress pain signals from that region because they're constantly present. it's not that your bone got stronger at sensing pain; it's that your brain stopped paying attention to it. which is... not actually a win.

Part 3: The Cellular Mechanotransduction (It's Real, But Messy)

so the actual mechanism at the cellular level is genuinely interesting, which is why this isn't complete pseudoscience—there's real biomechanics here.

when you strike bone, you create:

1. elastic compression - the bone squeezes, creating internal stress
2. stress waves - pressure propagates through the tissue like a shockwave
3. fluid pressure changes - the lacunar-canalicular system (those tiny channels where osteocytes live) experiences pressure spikes
4. cell membrane distortion - the osteocytes' membranes stretch, activating mechanosensitive ion channels

all of this is mechanotransduction—the cell's way of converting mechanical signals into chemical signals. the osteocytes express integrins (which are like little mechanical sensors on the cell surface), and when those integrins sense stretch, they activate downstream signaling cascades.

these cascades include:
- Wnt/β-catenin signaling (promotes bone formation)
- MAPK/ERK cascades (also promotes bone formation and osteoblast activity)
- PGE2 production (prostaglandin E2, a paracrine signal that says "make bone")


so yeah, your bone cells genuinely do respond to the mechanical signal created by bonesmashing. the problem is that it's happening alongside significant damage and chronic inflammation.

if you're absolutely determined to fuck up your skeleton, at least:
- start with light, controlled impacts
- don't hit hard with objects (use extremely light weights, your knuckles, a soft hammer)
- take breaks between sessions
- watch for signs of nerve damage (numbness, tingling, persistent pain)
- see a doctor if anything feels wrong
- seriously, see a doctor anyway

you're still a dumbass, but at least be a careful dumbass, JFL.