Metabolic HealthMar 15, 2026
Trimethylglycine (TMG) is one of those compounds that does a lot of heavy lifting in your body without getting much credit. It serves as both a cell protector and a methyl donor, two roles that touch everything from liver health to cardiovascular function. The biochemistry is solid, the animal data are extensive, and a handful of human studies point to real benefits for fatty liver and exercise performance. The gap? Large, long-term clinical trials are still missing for most of the conditions TMG might help.
TMG is a natural metabolite of choline, found abundantly in beets, spinach, wheat, and many other foods. Your body also makes it from choline, with the highest concentrations showing up in the kidney, liver, and brain. You're already consuming some from your diet. The question is whether supplementing more of it makes a meaningful difference.
CreatineMar 15, 2026
Creatine HCl is one of those supplements that sounds like it should be better. It dissolves more easily in water, comes in smaller doses, and costs more per serving. But when researchers actually put it head to head against plain creatine monohydrate in human trials, the results are stubbornly identical. No extra strength. No extra muscle. No hormonal advantage. The marketing writes checks the molecule can't cash.
That doesn't mean creatine HCl is useless. It's a legitimate creatine source, and it does work. The problem is the "upgrade" framing. Multiple randomized trials in trained athletes and recreational lifters consistently show that HCl produces similar gains in strength, lean mass, and performance compared to monohydrate. Researchers studying elite handball and softball players went so far as to call superiority claims for HCl "unfounded and misleading."
Physical ActivityMar 15, 2026
At Instalab, we believe nothing beats a consistently active lifestyle. Movement is medicine, and the more you do it, the better. But if you're strapped for time this week, you don't have to throw in the towel. Research shows that even short, strategic workouts can provide serious health benefits. Here's how to make every minute of exercise count.
Cognitive HealthMar 15, 2026
Caffeine isn’t just about alertness. New research reveals its surprising effects on brain health, insulin sensitivity, cancer risk, and all-cause mortality. But the benefits depend on how much and when you consume it and your unique biology.
AnxietyMar 15, 2026
Propranolol does something very specific: it blocks the physical symptoms of anxiety. The pounding heart, the shaking hands, the visible sweat. What it doesn't reliably do is treat anxiety itself. When researchers pool the evidence, only 25% of findings clearly support propranolol for anxiety disorders, while 38% find it ineffective for that purpose. The remaining studies land somewhere in the middle. That split tells you something important about where this drug fits and where it doesn't.
The disconnect matters because propranolol prescriptions for anxiety have become common, even though the strongest evidence supports it only in narrow, short-term situations. Understanding exactly when it helps, when it doesn't, and when it might actually be dangerous can save you from leaning on a tool that isn't built for the job you need it to do.
PerformanceMar 15, 2026
VO2 max represents how much oxygen the body can utilize during intense exercise. Unlike static measures such as cholesterol levels or blood pressure, it directly reflects how the heart, lungs, and muscles work together to sustain life. Improving VO2 max is possible at nearly every stage of life. For elite athletes, it can mean the difference between winning and losing. For the rest of us, raising VO2 max is one of the most powerful ways to extend healthspan and reduce risk of disease.
LongevityMar 15, 2026
Despite its reputation as a "male hormone", testosterone's role goes far beyond defining male traits like facial hair and a deeper voice. It's a critical regulator of metabolism, a key supporter of muscle and bone health, and a significant driver of mood, energy and libido.
Testosterone production ramps up from birth into adulthood, peaking in your 20s. But after age 30, levels begin to decline. This isn't just a minor shift; it's a biological change that can impact athletic performance, energy, and overall vitality. Left unchecked, falling testosterone can result in reduced muscle mass and a higher risk of cardiovascular issues.
AgingMar 15, 2026
Your VO₂max (maximal oxygen uptake, the absolute ceiling on how much oxygen your body can use during all-out exercise) drops roughly 8–10% every decade after your 20s. That rate holds whether you train seriously or barely move. The variable that actually matters is the level you're declining from: endurance-trained adults carry an extra 10–20 mL/kg/min of aerobic capacity compared to sedentary peers at the same age.
That gap is enormous. It can mean the difference between climbing stairs comfortably at 70 and struggling to walk across a parking lot.
CaffeineMar 15, 2026
Why does caffeine help some people feel sharp and focused while others feel anxious or wired? Your response may depend on three genes, CYP1A2, AHR, and ADORA2A, that regulate how you metabolize and react to caffeine. Understanding your caffeine genetics may help you optimize performance, reduce side effects, and even lower your cardiovascular risk.
CreatineMar 13, 2026
If you've spent any time browsing creatine supplements marketed to women, you've probably noticed a pattern: fancy formulations, pastel packaging, and price tags that climb with every added buzzword. The research tells a much simpler story. Plain creatine monohydrate, the same form that's been studied for decades, is the most effective, safest, and most affordable option for women at every life stage.
This article will help you answer the practical questions: Which type of creatine should you actually buy? How much do you need to take? Will it make you bloated? And does the answer change depending on your age or goals?
