Redakcja VitMode — Żywienie, suplementy i trening

At-Home Dermarolling and Microneedling

Micro-puncturing the skin with a roller covered in hundreds of microneedles — controlled, tiny injuries that trigger a healing response and collagen production. The procedure has solid support in the dermatology literature, above all for acne scarring, but performed at home it carries real, context-specific risks that simply don't exist in a dermatologist's office.

VO2 max

The maximum amount of oxygen the body can take up during exercise — one of the strongest, well-documented predictors of lifespan, measurable in a sports diagnostics lab.

Beefsteak Fungus (Fistulina hepatica)

A distinctive, 'bleeding' mushroom that looks like raw meat — prized more as a culinary curiosity than a supplement; preliminary chemical studies point to a very high content of phenolic compounds.

Elm Oyster Mushroom (Hypsizygus ulmarius)

A culinary mushroom closely related to shimeji, studied in the lab and in animals for antioxidant, hepatoprotective, and blood-sugar-supporting effects — with no clinical studies in humans.

Carpal Tunnel Syndrome

The most common compressive neuropathy in humans — a condition in which the median nerve is compressed in the narrow carpal tunnel of the wrist, causing numbness, tingling, and pain in the hand, typically worsening at night. A common, well-understood problem that, with early diagnosis, is usually treated successfully with conservative care, but if neglected can lead to permanent nerve damage.

Sciatica

Radiating pain along the path of the sciatic nerve, most often caused by a herniated disc compressing a nerve root — the good news is that the large majority of episodes resolve on their own within a few weeks of conservative treatment.

Kidney Stones

Mineral deposits forming in the urinary tract when the concentration of lithogenic substances in urine exceeds its solubility threshold — a classic RCT by Borghi showed that simply increasing fluid intake by nearly half cuts recurrence risk.

Gout

An inflammatory joint disease caused by monosodium urate crystal deposition due to chronic hyperuricemia — affecting up to several percent of the population, with a strong male predominance, and one of the few rheumatic diseases that can be effectively controlled by treating to a specific therapeutic target.

Creatine Kinase (CK/CPK)

Creatine kinase (CK, formerly CPK) is an enzyme released into the blood when muscle tissue — skeletal or cardiac — is damaged. It's ordered both in the diagnosis of muscle disease and in monitoring statin safety, as well as by athletes after intense training, where a moderately elevated result is a physiological phenomenon rather than a pathology.

Glycine

The simplest protein-building amino acid, which also acts as an inhibitory neurotransmitter — taken as a supplement before bed, it shortens time to fall asleep and improves subjective sleep quality through a mild drop in body temperature, without the sedative action typical of classic sleep medication.

Sleep, Athletic Performance and Recovery

For an athlete, sleep is what strength training is for muscle — part of the program, not a luxury you skip when time is tight. Even one night of shortened sleep measurably reduces endurance, strength, speed, and decision accuracy, and chronic sleep loss raises injury risk more than training volume itself.

X-Ray (Radiography)

An X-ray is the oldest and still fastest-available medical imaging method — a single, flat projection of X-radiation that can assess bones, lungs, and select chest or abdominal structures within seconds, at a low radiation dose compared with CT.

Uric Acid (Blood Test)

Uric acid is the end product of purine breakdown — its blood test helps assess the risk of gout and kidney stones, but a single result on its own neither confirms nor rules out disease.

Panax Ginseng

One of the longest-used adaptogens in traditional medicine — with moderate evidence for improved cognitive function and reduced chronic fatigue.

High-Intensity Interval Training (HIIT)

Short, intense bursts of effort produce comparable or better metabolic results than longer moderate-intensity training — at a substantially smaller time investment.

Autophagy

An intracellular 'housekeeping' process that clears out damaged proteins and organelles, whose discovery earned a Nobel Prize — one of the key mechanisms studied in the context of slowing aging.

Heart Rate Variability (HRV)

The variability in the time between successive heartbeats is one of the best non-invasive indicators of autonomic nervous system balance — today available in nearly every sports watch.

Eleuthero (Siberian Ginseng)

Despite its common name 'Siberian ginseng,' this is a completely different plant from Panax ginseng — with a distinct profile of active compounds and its own, equally promising evidence base.

Citicoline (CDP-choline)

A compound naturally occurring in the body as an intermediate in phosphatidylcholine synthesis — one of the few nootropics with real, though moderate, evidence for improved attention and psychomotor speed.

Zone 2 Endurance Training

Long, easy aerobic exertion kept slow enough that you can hold a conversation — deceptively boring, but it's exactly this that builds the fitness foundation HIIT's effects rest on.

Cold Plunges and Cold Exposure

Controlled exposure to cold water has become one of the most recognizable biohacking practices — with real, though more modest than pop culture suggests, scientific backing.

Red Light Therapy (Photobiomodulation)

Exposure to red and near-infrared light has become a popular biohacking tool — with real, though still limited, evidence mainly in the context of skin health.

The Myth of Multitasking

What we experience as 'doing several things at once' is actually rapid switching of attention between tasks — and every switch carries a measurable, cumulative cognitive cost.

Adaptive Thermogenesis

A drop in resting energy expenditure beyond what body-mass loss alone would predict — the mechanism explaining why weight loss naturally slows over time, even with a maintained calorie deficit.

Ibuprofen and Alcohol: Can You Mix Them and What Is the Risk?

Ibuprofen and alcohol do not trigger a dangerous chemical reaction, but both irritate the stomach lining and both can burden the kidneys. The best available data come from a case-control study of 1,224 people with upper gastrointestinal bleeding: regular ibuprofen use was linked to a risk about 2.7 times higher, while occasional use showed no significant increase. We explain what this means for someone who fancies a glass of wine and a tablet for a headache, who should avoid the combination altogether, and what science does not yet know.

November 3, 2026

Paracetamol (Acetaminophen): Maximum Daily Dose, the Liver and Alcohol

Paracetamol is often regarded as a safe drug, but the line between a therapeutic and a toxic dose is narrower than for many other popular medicines. According to the NIH information page, the maximum dose for adults from all sources combined is 4,000 mg a day, and in a randomised trial in healthy adults taking exactly 4 g a day, ALT activity exceeded three times the upper limit of normal in 31-44% of people. We explain the mechanism of liver injury (NAPQI and glutathione), what is really known about alcohol, why a staggered overdose is dangerous, and in which combination products paracetamol hides.

November 3, 2026

NSAIDs, Blood Pressure and the Kidneys: Who Should Be Careful

Nonsteroidal anti-inflammatory drugs (ibuprofen, naproxen, diclofenac) can raise blood pressure by about 5 mmHg on average and weaken blood pressure medicines, and combined with a diuretic and an ACE inhibitor or sartan they form the so-called triple whammy for the kidneys. We present data from a meta-analysis of randomised trials, from a 4-month trial with ambulatory blood pressure monitoring, from a large population study and from a Cochrane review of drugs applied to the skin. We also explain why paracetamol is not entirely neutral for blood pressure either, who should be most careful and what to do instead of reaching for a tablet.

November 3, 2026

Stopping PPIs: Is Heartburn After Stopping Rebound, and How to Taper Off

Heartburn after stopping a proton pump inhibitor (omeprazole, pantoprazole, esomeprazole) can be a real phenomenon: in a randomised trial in healthy volunteers, after 8 weeks of esomeprazole 44% of people reported acid-related symptoms, compared with 15% in the placebo group. That does not mean the drug is addictive or that it must always be taken for life, however. We explain the difference between transient rebound and a true relapse of reflux disease, what the guidelines say about coming off the drug (gradual reduction, stopping, on-demand dosing), who should not stop a PPI and when symptoms need investigation.

November 3, 2026

Antihistamines: Drowsiness, Sleep and Which Are Safe for Driving

First-generation antihistamines such as diphenhydramine cause drowsiness because they enter the brain and block the histamine receptors responsible for wakefulness. In a driving simulator a single 50 mg dose of diphenhydramine impaired driving more than alcohol at a blood level of about 0.1%, and self-rated drowsiness poorly predicted who drove worse. We explain how the generations of these drugs differ, what is known about using them as sleep aids (modest evidence, next-morning drowsiness, tolerance within a few days), why a warning about anticholinergic burden appears for older people and how to choose if you have to drive.

November 3, 2026

Cracking Joints: Is Knuckle Cracking and Knee Popping Harmful?

Knuckle cracking and popping knees are among the most common body noises, and among the most often demonised. Studies have not shown that habitual knuckle cracking raises the risk of hand arthritis, and knee crepitus occurs in roughly 4 in 10 people, including those without pain. We explain where the sound comes from, what the research shows and when a noisy joint deserves attention: when it comes with pain, swelling, locking or a feeling of instability.

November 3, 2026

Morning Joint Stiffness: How Long Should It Last and What Does It Mean?

Joint stiffness on waking that eases within about half an hour is typical of osteoarthritis. Stiffness lasting longer than 30–60 minutes, especially with swollen joints, night pain or improvement with movement, usually points to inflammatory causes: rheumatoid arthritis, polymyalgia rheumatica or spondyloarthritis. We explain what the criteria and studies say, what role CRP, rheumatoid factor and anti-CCP play, and when to book a rheumatologist.

November 3, 2026

Knee Osteoarthritis: Exercise, Weight Loss and Treatment Without Surgery

The foundation of knee osteoarthritis treatment is exercise and, if overweight, weight loss; these are the best-supported methods, while knee arthroscopy brings no real benefit. A Cochrane review of 139 trials (12,468 people) points to improved function and pain after exercise, and an analysis of 1,383 people showed that a meaningful functional improvement needs a loss of about 7.7% of body weight. We also describe honestly what is known about medicines, steroid and hyaluronic acid injections, and when to consider a knee replacement.

November 3, 2026

Bursitis of the Hip, Elbow and Knee: Symptoms and Treatment

Bursitis causes pain, swelling and tenderness around a joint, most often the elbow, knee and outer side of the hip. In the hip, what is called 'bursitis' is usually gluteal tendinopathy, and in a randomised trial education with exercise gave a better result after a year than a steroid injection. The bursae of the elbow and knee can become infected: fever, rapidly spreading redness and warmth call for urgent medical assessment.

November 3, 2026

Bunion (Hallux Valgus): Conservative Treatment or Surgery?

A bunion is a common foot deformity: globally it affects about 19% of people, and in women it is twice as common as in men. Insoles, splints and comfortable footwear can ease pain but do not reverse the deformity; in a randomised trial of 209 people, after a year 83% of those operated, 46% of those using orthoses and 24% of those with no treatment reported improvement. Surgery makes sense for persistent pain, but the deformity returns in about a quarter of cases.

November 3, 2026

Functional Dyspepsia: Upper Abdominal Pain and Fullness Without an Ulcer — Symptoms, Rome IV Criteria and Treatment

Functional dyspepsia is chronic pain, burning, fullness or early satiety in the upper abdomen that is not explained by an ulcer, a tumour or any other disease visible at gastroscopy. It is diagnosed with the Rome IV criteria after organic causes have been excluded, and treated step by step: H. pylori test-and-treat, a proton pump inhibitor, then low-dose tricyclic antidepressants or a prokinetic. We explain what the meta-analyses show, how large the real effect of each approach is and which symptoms need urgent work-up.

October 29, 2026

Frequent Belching: Causes, When It Is a Belching Disorder and How It Is Treated

Belching is a normal physiological event, but when it becomes frequent, loud and bothersome it is called a belching disorder. The Rome IV classification distinguishes gastric and supragastric belching — the latter is a habit of sucking air into the oesophagus and immediately expelling it, not a symptom of stomach disease. We explain how to tell them apart, what they overlap with (reflux, dyspepsia, anxiety), what studies say about diaphragmatic breathing, speech therapy and baclofen, and when belching needs investigation.

October 29, 2026

Difficulty Swallowing (Dysphagia): Causes, Tests and When to See a Doctor Urgently

Dysphagia is the sense that food or liquid does not pass smoothly from the mouth to the stomach. A distinction is made between oropharyngeal dysphagia (trouble starting a swallow, coughing and choking) and oesophageal dysphagia (a feeling of food sticking after swallowing), and the causes range from reflux and strictures, through eosinophilic oesophagitis and achalasia, to neurological disease and cancer. We explain how to tell the two types apart, which tests are done and which symptoms call for prompt investigation.

October 29, 2026

Stomach and Duodenal Ulcer: Symptoms, Causes, Diagnosis and Treatment

A stomach or duodenal ulcer is a defect in the lining caused most often by Helicobacter pylori infection or by non-steroidal anti-inflammatory drugs, including aspirin. It presents as pain or burning in the upper abdomen, but may also be silent until complications: bleeding or perforation. We explain how diagnosis works (gastroscopy, H. pylori testing), what eradication and proton pump inhibitors achieve according to Cochrane reviews and meta-analyses, and which symptoms mean urgent help.

October 29, 2026

Chronic Nausea: Causes (Stomach, Drugs, Hormones, Nervous System) and How It Is Diagnosed

Nausea lasting weeks or months rarely has a single cause. The usual places to look are the stomach (gastroparesis, peptic ulcer, reflux), medicines and supplements (metformin, iron, GLP-1 analogues), hormonal disorders, the nervous system (migraine, vestibular disorders) and anxiety. We explain the order in which tests are done, what the Rome IV criteria mean and when chronic nausea needs urgent work-up.

October 29, 2026

Neck Pain: Causes, Exercises and When Imaging Is Needed

Neck pain is one of the most common musculoskeletal complaints, and in the great majority of cases there is no single cause visible on a scan; doctors call it non-specific neck pain. A Cochrane review of 27 trials indicates that for chronic neck pain the best evidence concerns strengthening exercises, while MRI in people with no symptoms shows disc bulges in more than 87% of cases, so the scan result alone rarely explains the pain. Below we set out what is known about causes, about the role of the phone and sitting posture, about exercise and manual therapy, and about the warning signs (numb hands, gait problems, fever) at which investigation should not wait.

October 29, 2026

Pain Between the Shoulder Blades: When It Is Muscle, and When Heart, Oesophagus or Gallbladder

Pain between the shoulder blades most often comes from the muscles and joints of the thoracic spine, but it can also be referred pain from internal organs: the heart, aorta, oesophagus, gallbladder or lungs. In a large US registry 33% of patients with a heart attack reported no chest pain, and in the aortic dissection registry classic findings were often absent. The article shows how to recognise mechanical pain, which features of the pain raise or lower the probability of heart disease, when the pain is a warning sign and which tests are done and in what order.

October 29, 2026

Tailbone Pain (Coccydynia): Causes, Treatment and Cushions

Coccydynia, or tailbone pain, usually worsens on sitting and when rising from a chair, and the most common risk factors are obesity, female sex, injury and prolonged sitting. According to a review in the Ochsner Journal, conservative treatment is effective in about 90% of cases, and in a systematic review of 64 studies (1980 patients) even conservative care alone gave an average pain improvement of 1.7 cm on the VAS. The article explains where this pain comes from, what is known about cushions, drugs, physiotherapy, injections and surgery, when imaging is performed and which symptoms are a signal for an urgent consultation.

October 29, 2026

Numb Hands at Night: Is It Really Carpal Tunnel Syndrome?

Numbness of the hands at night is most often linked to carpal tunnel syndrome, but not always: similar symptoms are produced by compression of the ulnar nerve, irritation of a nerve root in the neck, thoracic outlet syndrome and polyneuropathy in diabetes or vitamin B12 deficiency. In a survey of 396 people as many as 33% experienced nocturnal paraesthesia at least once a week, also without diagnosed carpal tunnel syndrome. The article shows how to tell which nerve is involved, the significance of sleeping position, diabetes, the thyroid and vitamin B12, what Cochrane says about night splints, and when numbness calls for more urgent investigation.

October 29, 2026

Sacroiliac Joint Pain (SI Joint): How to Recognise and Treat It

Sacroiliac joint (SIJ) pain is usually felt in the buttock and lower back below the level of L5 and, according to international consensus guidelines, affects 15–30% of patients with axial pain. There is no single test that confirms it: diagnosis rests on a set of provocation tests (three of six positive gave a sensitivity of 94% and specificity of 78% against a diagnostic block), and the evidence for exercise, manual therapy and injections is largely indirect or of low quality. The article explains how to tell this pain from disc and hip pain, what studies say about treatment, the role of pregnancy and spondyloarthritis, and when to see a doctor.

October 29, 2026

Too Much Vitamin A: Symptoms, Doses and Who Is at Risk

Vitamin A is essential, but unlike most vitamins it is easy to overdose because it is stored in the liver. Hypervitaminosis A concerns preformed retinol (supplements, liver, cod liver oil, retinoid drugs), not beta-carotene from vegetables. The European Food Safety Authority (EFSA, 2024) kept the upper safe limit at 3000 µg RE a day for adults, based on the risk of birth defects. We explain what acute and chronic poisoning looks like, what is known about bones and the liver, why women planning pregnancy should be careful with liver, and which tests help and which mislead.

October 26, 2026

Coffee and Cholesterol: Does Unfiltered Coffee (Turkish, French Press) Raise LDL While Filtered Coffee Does Not?

Yes — unfiltered coffee (Turkish, boiled, French press) contains cafestol and kahweol, which raised LDL and ALT in randomized trials, while a paper filter traps most of these compounds. The effect is dose-dependent and reversible, and its size depends on how much of that coffee you drink per day, not on coffee drinking itself. We explain what the studies show, how espresso and office-machine coffee compare, and what it means if your cholesterol is already high.

October 24, 2026

Hydrogen Water: What the Studies Say and Who It Makes Sense For

Hydrogen water is marketed as a powerful, “selective” antioxidant: it is supposed to reduce fatigue, improve athletic results, lower cholesterol and slow ageing. The truth is less spectacular. Randomised trials exist, but they are small, often short, with conflicting results, and some are funded or co-authored by interested parties. Add a problem marketing dislikes: how much hydrogen is actually left in the bottle once you open it. We check what is proven and what is a hypothesis.

October 24, 2026

Homemade Isotonic Drink: Composition (Sodium, Sugar, Water), When It Helps and When It Is Unnecessary

A homemade isotonic drink is water with a little sugar and salt, meant to replace fluid, energy and sodium during long exercise. It sounds simple, but two mistakes are easy to make: drinking it at every workout when water would do, or taking it for a substitute for oral rehydration solution in diarrhoea, which it is not. We explain what sports-medicine position stands and studies say, give a recipe with exact amounts (clearly labelled as practice-based, not from a single study), and describe when an isotonic drink is unnecessary or risky.

October 24, 2026

Can insulin resistance occur in a lean man?

Yes — insulin resistance can affect men with a normal BMI too, if fat accumulates mainly viscerally and inside internal organs rather than under the skin. We explain the TOFI phenomenon (thin-outside-fat-inside) and why BMI alone isn't enough to assess metabolic risk.

Can insulin resistance occur without being overweight?

Yes — insulin resistance can occur even in people with no excess body fat at all, including visceral fat. We explain the rarer, but real, mechanisms that operate independently of fat: genetic variants in the insulin signaling pathway, chronic sleep deprivation, chronic stress, and physical inactivity.

OTC Sleep Aids — Overview and Comparison

Melatonin, valerian, diphenhydramine, magnesium, glycine, L-theanine — the six most popular over-the-counter sleep aids work on completely different principles and have completely different levels of evidence behind them. Choosing the right one depends on exactly which sleep problem you're trying to solve, not on which product has the loudest marketing.

Exercise Stress Test

An exercise stress test monitors the heart's electrical activity, blood pressure, and symptoms during gradually increasing physical exertion on a treadmill or stationary bike, revealing heart muscle ischemia that remains invisible on a resting ECG.

Oral Glucose Tolerance Test (OGTT)

The oral glucose tolerance test (OGTT) is a functional test assessing how the body handles a standardized dose of glucose over time — from a fasting measurement, through drinking a 75 g glucose solution, to serial blood draws over the following hours. Unlike a single fasting glucose measurement or HbA1c, it reveals early, dynamic disturbances in glucose tolerance.

hCG as Adjunct Therapy in TRT

Human chorionic gonadotropin is sometimes added to testosterone replacement therapy specifically to prevent testicular atrophy and preserve fertility — a problem exogenous testosterone alone doesn't solve.

Zinc

A trace element essential for the work of over 300 enzymes in the body — its deficiency, more common than widely believed, affects immunity, wound healing, and hormone balance.

Chronotype

An individual, largely genetically determined preference for sleep and activity timing — ignoring it leads to a phenomenon known as 'social jet lag,' linked to worse metabolic health.

SHBG (Sex Hormone-Binding Globulin)

A transport protein whose level determines how much testosterone is actually 'available' to tissues — without knowing SHBG, a total testosterone result alone can be misleading.

PSA and Prostate Health

Prostate-specific antigen is one of the most commonly ordered tests in men over 50 — but also one of the most controversial, due to a high false-positive rate.

Sleep and Memory

Learning during the day is only half of the memorization process — the other half happens at night, as the brain actively consolidates and organizes newly acquired information during sleep.

Growth Hormone (GH)

A peptide hormone responsible for growth in childhood and tissue regeneration throughout life — surrounded by a dense web of marketing myths about supplements supposedly 'releasing GH.'

Telomeres and Telomerase

Protective 'caps' on the ends of chromosomes that shorten with every cell division — one of the most recognizable, though still imperfect, biomarkers of cellular aging.

Male Fertility and Semen Quality

A widely cited 2017 meta-analysis showed a decades-long decline in sperm counts in Western countries — we look at what's actually known about the factors affecting male fertility.

NEAT (Non-Exercise Activity Thermogenesis)

All the energy burned on everyday movement unrelated to formal exercise — fidgeting, standing, gesturing — can differ by as much as 2000 calories a day between individuals, despite no difference in the number of planned workouts.

HbA1c (Glycated Hemoglobin)

A biomarker reflecting average blood glucose over the past 2–3 months — the gold standard for diagnosing and monitoring diabetes, far more stable than a single glucose measurement.

What is biohacking

From the DIY-biology movement through the Quantified Self to today's social-media-popular trend — what biohacking actually is in practice, and where science ends and marketing begins.

Grifola sordulenta

A Patagonian 'sister' species to Grifola gargal, growing on koihue and prized locally for its culinary qualities — but, unlike gargal, with practically no research in humans or animals at all.

Cauliflower Mushroom (Sparassis crispa)

A rare, prized forest mushroom with one of the highest documented beta-glucan contents — in Poland it's mainly foraged for the table, while Japanese research into its effects on immunity and blood sugar rests almost entirely on animal models.

Hon-shimeji (Lyophyllum shimeji)

A wild-growing, mycorrhizal 'true shimeji' from Japan and Scandinavian pine forests — genetically and ecologically distinct from the cultivated bunashimeji sold under the same name.

Almond Mushroom (Agaricus blazei)

A mushroom from the Brazilian forests studied mainly for immune modulation and blood-sugar support — human evidence is mixed and preliminary, despite the supplement's considerable popularity.

Ochre Bracket (Trametes ochracea)

A species nearly identical to turkey tail, often mistaken for it in the field. It has a single laboratory study on a fruiting-body extract behind it — no clinical trials whatsoever.

Shaggy Bracket (Inonotus hispidus)

A rare, striking orange-rust bracket fungus in Poland, parasitizing mainly apple and ash trees; a relative of chaga with limited, mostly Chinese, in vitro research into anticancer and antioxidant compounds.