XY Files Blog

Medically reviewed articles on testosterone, hormones, fitness, and longevity, so you can make informed decisions about your health.

Henry Cavill weight training: The physiology behind the Man of Steel’s physique

Veedma's editorial team: Evidence-based men's health

Dec 07, 2025 · 11 min read

Henry Cavill’s “superhero” build (reportedly about 190 to 210 lb on screen) is achieved by combining high-mechanical-tension lifting to stimulate hypertrophy with metabolic work (including fasted cardio) that can support energy balance and lipid oxidation. Here’s how recovery, neuromuscular adaptation, and joint-protective programming make that body composition sustainable instead of short-lived ego lifting.” “When we ...

What is the normal band for BMI in men? A fitness blog guide to what the number really means

Veedma's editorial team: Evidence-based men's health

Dec 07, 2025 · 14 min read

For adult men, the normal BMI band is 18.5 to 24.9 kg/m². That normal band is useful for screening, but a good BMI fitness blog should also tell you what BMI misses, especially waist size, visceral fat, fitness, sleep, and hormone symptoms. “BMI’s normal band is a screening range, not a body scan. If a ...

What do elliptical trainers do for your physique and longevity?

Veedma's editorial team: Evidence-based men's health

Dec 07, 2025 · 13 min read

Elliptical trainers provide low-impact, weight-bearing cardio that can improve aerobic fitness and help maintain or reduce body fat when programmed at sufficient intensity. Here is what they actually do to your muscles, joints, heart, and hormones, and how men can use them for real results. “When guys ask me what do elliptical trainers do, they ...

The worst foods for gut health and how they disrupt your entire system

Veedma's editorial team: Evidence-based men's health

Dec 06, 2025 · 10 min read

Ultra-processed foods high in added sugar, artificial sweeteners/additives, and unhealthy fats can measurably change microbiome composition within 24 hours. Over time, those patterns may weaken the protective mucosal barrier and increase intestinal permeability, allowing bacterial components (like endotoxin) to enter the bloodstream and contribute to systemic inflammation. Here’s what human, mechanistic, and animal research suggests ...

Weight lifting and calories burned: How many calories does lifting weights burn for men?

Veedma's editorial team: Evidence-based men's health

Dec 06, 2025 · 13 min read

A 45 minute weight lifting session typically burns about 200 to 600 calories for men, depending on body weight, the MET level of the workout (traditional lifting around 3.5 METs vs vigorous circuits around 8 METs), and how dense the session is (rest times and transitions). Compared with a steady cardio session of the same ...

Can low testosterone cause joint pain?

Veedma's editorial team: Evidence-based men's health

Dec 06, 2025 · 15 min read

Low testosterone can contribute to joint pain by increasing chronic inflammation and weakening the muscle, bone, and cartilage support that stabilizes joints. A 2025 longitudinal cohort study in BMC Musculoskeletal Disorders reported that men with low testosterone had about double the risk of developing osteoarthritis. [4] If aching knees or stiff shoulders come with fatigue, ...

How long do honey packs last? What the research says

Veedma's editorial team: Evidence-based men's health

Dec 06, 2025 · 17 min read

If a honey pack contains sildenafil, it usually takes about 30 to 60 minutes to kick in and lasts about 4 hours. If it contains tadalafil, a royal honey pack may take 1 to 2 hours to hit, last up to 36 hours, and linger in the body for 3 to 4 days, which is ...

Healthy suppositories for men: What works, what is safe, and what to avoid

Veedma's editorial team: Evidence-based men's health

Dec 05, 2025 · 12 min read

Healthy suppositories for men are clinician recommended rectal or urethral inserts that treat a specific diagnosis with a known medication, dose, and safety profile. This guide breaks down which suppositories are evidence based, what “natural” options really mean, and how to use them safely without missing more serious problems. “A suppository is just a delivery ...

Why do i get so hot when i sleep: The science of night sweats and overheating

Veedma's editorial team: Evidence-based men's health

Dec 05, 2025 · 15 min read

You get hot in your sleep when the normal nighttime drop in core body temperature of about 0.5 to 1.0 °C (1 to 2 °F) is disrupted, prompting the hypothalamus to open skin blood vessels and activate sweating to dump heat. The good news is that the trigger is often changeable, such as room setup, alcohol, stress, ...

Does stress cause low testosterone in men? What science really shows

Veedma's editorial team: Evidence-based men's health

Dec 05, 2025 · 14 min read

Chronic psychological stress is linked to lower morning testosterone in men, largely because sustained HPA axis cortisol output can suppress hypothalamic-pituitary-gonadal (GnRH/LH) signaling and reduce testicular testosterone production. Here is how to recognize the stress-low T feedback loop and what actually helps break it. “Stress and testosterone talk to each other all day long. Short ...

Semen retention meaning and the science behind the hype

Veedma's editorial team: Evidence-based men's health

Dec 05, 2025 · 13 min read

Semen retention is deliberately avoiding ejaculation for a period of time. Research suggests it does not produce a sustained testosterone boost. According to a 2001 study in World Journal of Urology, there was a modest rise around day 7 of abstinence that drifted back toward baseline despite continued retention. Here’s what the evidence says about ...

Does testosterone cause hair loss? Separating hormonal fact from fiction

Veedma's editorial team: Evidence-based men's health

Dec 04, 2025 · 11 min read

Testosterone itself isn’t the direct cause of male pattern hair loss; the issue arises when 5‑alpha reductase converts it into DHT, which miniaturizes genetically androgen‑sensitive scalp follicles even when total testosterone is normal. With androgenetic alopecia affecting roughly 30% to 50% of men by age 50, the real question is whether your follicles are “wired” ...