Innate Chiropractic

03/17/2026

Passive stretching may have a meaningful edge over active stretching for flexibility gains.

When you stretch passively, an external force does the work - a strap, a wall, a partner, or even gravity. Your target muscle stays relaxed while something else holds the position. Active stretching, by contrast, uses your own muscular effort to create and hold the stretch.

A 2023 systematic review of 41 studies found that passive stretching produced what researchers described as a "large effect" on range of motion - nearly a full standard deviation improvement in joint flexibility. Active stretching showed more moderate gains.

The reason may be fairly straightforward. When an external force holds the stretch, you can often reach a deeper position than your own muscle strength would allow. You're not limited by fatigue or discomfort in the surrounding muscles.

That said, both approaches do improve flexibility, and active stretching has its own advantages - it engages the muscles while lengthening them, and doesn't require any assistance or equipment.

For those whose primary goal is improving range of motion, the research suggests passive methods may be worth prioritizing.

03/16/2026

For joint pain, research suggests the muscles around your knees might matter more than the joint itself.

A 1997 study found that people with weaker quadriceps - the large muscles at the front of your thigh - were significantly more likely to have knee osteoarthritis and knee pain, even without a prior injury.

The proposed mechanism makes sense when you think about it. Strong muscles act like built-in shock absorbers. When they're working properly, they absorb and distribute the forces your knee experiences with every step, reducing how much stress lands directly on the cartilage.

When those muscles are weak, that buffering system is compromised. The joint has to take on more of the load than it's designed to handle.

This is part of why strength training - particularly exercises that target the quads - shows up consistently in research on joint health. It may not just be about fitness in the traditional sense, but about maintaining the structural support system your knees rely on.

03/13/2026

Cartilage doesn't have its own blood supply - so how does it stay nourished?

Unlike most tissues in your body, cartilage can't draw nutrients directly from nearby blood vessels. Instead, it relies on a mechanical process: the compression and decompression that happens when you move.

Every time your joint loads and unloads - during walking, cycling, or even light exercise - it essentially squishes the cartilage like a sponge. This pumps out waste products and pulls in fresh, nutrient-rich joint fluid. Rest, and that exchange slows considerably.

Animal research suggests that moderate, regular exercise may actually improve cartilage thickness and composition over time. The tissue appears to respond to appropriate movement by maintaining - and in some cases enhancing - its structural quality.

This helps explain why complete rest isn't generally considered the best approach for joint health, even in people who already have some cartilage wear. The joint depends on motion to run its basic maintenance processes.

It's a useful reframe: movement may function less like wear-and-tear, and more like a delivery system for the joint itself.

03/12/2026

Shingles nerve pain can linger for months - but could vitamin C play a supportive role in recovery?

Shingles, caused by the herpes zoster virus, sometimes leaves behind a condition called post-herpetic neuralgia - a painful, persistent nerve irritation that can be difficult to manage with standard treatments alone.

Some researchers have been exploring high-dose intravenous vitamin C as a supportive therapy alongside antivirals. In one clinical trial, patients with acute shingles who received vitamin C infusions reported notably lower pain levels in the weeks that followed. Fewer of them went on to develop chronic post-herpetic neuralgia compared to those who didn't receive it.

Case reports have documented similar patterns - patients whose nerve pain improved meaningfully after IV vitamin C when antivirals and standard pain relief weren't providing enough comfort.

Researchers think vitamin C's antioxidant and anti-inflammatory properties may help calm the nerve environment that sustains this kind of pain. It's also thought to support the body's natural pain-modulating chemicals.

03/11/2026

Joint pain doesn't have to mean the end of staying active - it just changes how you go about it.

For people with a history of joint injuries or arthritis, high-impact exercise like running can accelerate cartilage wear in already-damaged joints. Animal research found that mice with prior meniscal injuries who continued running developed more severe joint damage than injured mice who stayed sedentary.

But the solution isn't inactivity - that comes with its own risks. Sedentary living weakens the muscles that support your joints, and research consistently links physical activity to better joint outcomes, not worse ones.

That's where low-impact options like swimming, cycling, and yoga come in. Water exercise removes gravitational load from the joint entirely. Cycling offers smooth, rhythmic motion without the pounding. Yoga builds the flexibility and muscle control that help stabilize joints during everyday movement.

These activities still deliver the core benefits that protect joints long-term - stronger surrounding muscles, better circulation, and maintained range of motion - without placing excessive stress on tissue that may already be compromised.

03/10/2026

Could stretching actually help you jump higher?

Most people think of stretching as something you do to stay loose - not something that makes you more explosive. But research suggests it might do both.

A 2023 systematic review of 41 studies found that regular static stretching produced small but statistically significant improvements in muscle power - the ability to produce force quickly, which matters for things like jumping or sprinting.

One controlled study gives a clearer picture. Participants who followed a stretching-only program for 10 weeks - no other exercise - improved their vertical jump height by roughly 7%. The control group, who didn't stretch, showed no change at all.

The effect appears stronger in people who are older or less active to begin with. For someone who's already training regularly, the power gains from stretching are likely modest. For someone more sedentary, they may be more meaningful.

03/09/2026

Eating oily fish twice a week might do something unexpected - it could help protect your back as you age.

A five-year observational study tracking the diets and pain outcomes of older adults found that those who ate more oily fish had a significantly lower incidence of pain over time. Each additional weekly serving of omega-3-rich fish was linked with a notable decrease in the chance of developing chronic pain.

The likely mechanism is inflammation. Omega-3s - the fats found in salmon, mackerel, sardines, and similar fish - help lower the body's production of inflammatory chemicals. Chronic inflammation is thought to damage spinal discs and surrounding muscles over time, so keeping it in check may slow that process.

It's worth noting this study was observational, meaning it can show an association but can't fully confirm cause and effect. Other lifestyle factors could play a role.

Still, two servings of oily fish per week is a fairly modest dietary shift, and the broader research into omega-3s and back pain is growing.

03/06/2026

You could be severely magnesium deficient right now - and your blood test would never catch it.

Here's why: only 0.3% of your body's magnesium is found in your blood. The other 99.7% is locked away inside your cells and bones.

When blood magnesium drops, your body sees it as a cardiac emergency. It immediately starts pulling magnesium from your bones and tissues to keep your heart beating properly. That means your serum levels can look perfectly "normal" while your cells are starving.

This matters because magnesium is involved in over 300 enzymatic reactions - everything from energy production to nerve signaling. Researchers have found that serum magnesium testing misses the majority of magnesium-deficient people.

If you're dealing with anxiety, muscle cramps, or unexplained fatigue, a standard blood test might tell you everything's fine when it's not.

A more accurate option is an RBC magnesium test, which measures the magnesium inside your red blood cells rather than in your serum. It's not perfect, but it gives a better picture of what's actually happening at the cellular level.

03/05/2026

We live in a time when food is everywhere - drive-throughs, delivery apps, grocery stores packed with options. Yet millions of people are still nutrient deficient.

How does that happen?

The answer is hidden hunger - when you're getting plenty of calories but not enough vitamins and minerals to actually thrive.

Research analyzing food composition data found that many garden crops today contain significantly less protein, calcium, iron, and vitamins compared to the same crops in 1950. This happens because modern farming prioritizes yield and growth speed over nutrient uptake.

At the same time, ultra-processed foods dominate our diets. Studies show that higher consumption of these foods correlates with lower intake of essential nutrients like magnesium, zinc, and B vitamins - even when total calories are high.

So you can eat all day and still be running on empty at the cellular level. Your body gets the fuel but not the raw materials it needs for repair, energy production, and optimal function.

It's a modern paradox worth understanding if you're feeling off despite eating "enough."

03/04/2026

03/04/2026