XY Files Blog

Evidence-based articles on testosterone, hormones, fitness, and longevity, so you can make informed decisions about your health.

Hot flush in males: Causes, symptoms, and treatments that actually help

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

Dec 01, 2025 · 11 min read

Hot flushes in men can occur after a sharp reduction in sex hormones, especially during androgen-deprivation therapy for prostate cancer. Recurrent flushing also has other possible causes, so treatment depends on identifying the cause. Key takeaways Hot flushes in men can disrupt sleep, work, and quality of life, and they are worth evaluating rather than ...

Why no morning wood happens and what it reveals about your vascular health

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

Dec 01, 2025 · 14 min read

Losing morning erections for many weeks often means nocturnal penile tumescence is being blunted by reduced penile blood flow, impaired nerve signaling, or poor sleep. This can flag vascular problems even when testosterone is normal. Here’s how to interpret the change and when it should prompt a closer look at diabetes and cardiovascular risk. The ...

How quickly does a b12 shot work? A realistic timeline for men

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

Dec 01, 2025 · 12 min read

Vitamin B12 blood levels typically rise within hours to 24 hours after an injection. If symptoms improve, it often occurs over days to weeks, depending on how severe the deficiency is and what is causing your symptoms. If you are not truly B12 deficient or you have another root cause of fatigue, the “boost” may ...

How much does the bar weight bench press: A complete guide to lifting standards

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

Nov 30, 2025 · 15 min read

A standard Olympic barbell used for the bench press weighs 45 lb (20 kg) before you add any plates. From there, your “real” bench number is the total loaded weight, and a common general-fitness target is about a 1:1 bench-to-bodyweight ratio with strict form. How much does a bench press bar weigh? A complete guide ...

Novak Djokovic proactive care performance: The science of defying age

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

Nov 30, 2025 · 17 min read

Elite performance in your late 30s is achievable when you proactively manage the predictable physiology of aging. Testosterone falls gradually with age, aerobic capacity declines faster with each passing decade, and strength is lost faster than muscle mass. Consistent strength work, endurance training, and recovery keep function higher along that curve and help prevent the ...

Can you drink coffee while fasting? What black coffee really does to a fast

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

Nov 30, 2025 · 13 min read

Black coffee does not break a metabolic fast for most men because an 8 ounce cup has about 3 calories and is unlikely to trigger a meaningful insulin response. The real risk comes from what you add to it, plus how caffeine affects hunger, blood sugar, cortisol, and your gut when your stomach is empty. ...

Does diet coke break a fast? What men should know about diet soda, insulin, and hunger

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

Nov 29, 2025 · 12 min read

Diet Coke and other diet sodas contain essentially no calories, so they technically do not break a fast. In some men, the sweet taste or caffeine may affect hunger, insulin, or stress responses enough to make fasting feel less effective. Key takeaways Diet soda has zero calories, so it technically does not break a fast ...

NAD+ injections safety and benefits for men. What to know about NAD3 side effects

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

Nov 29, 2025 · 13 min read

NAD+ injections can be a safe way for men to raise NAD availability when they are prescribed, sourced well, and dosed correctly, but the benefits are still emerging and side effects are real. If you are seeing “NAD3” online, focus less on the label and more on the exact active ingredient, concentration, route, excipients, and ...

Bioidentical hormone replacement therapy for men: Science, safety, and real-world results

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

Nov 28, 2025 · 16 min read

Most prescription testosterone replacement used in men is already “bioidentical.” The hormone molecule is chemically identical to what the testes produce, even as levels commonly decline about 1% per year after age 30 to 40. The real question is whether you have symptomatic, consistently low testosterone and how to dose and monitor therapy to restore ...

Is Propel water good for you? What science actually says

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

Nov 28, 2025 · 15 min read

Propel is generally good for hydration and usually healthy to drink for workouts under about 60 to 90 minutes, with 0 calories, 0 g sugar, and about 270 mg sodium per 20 ounce bottle, but it does not provide the carbohydrate needed for prolonged endurance exercise or meaningfully treat a Super Bowl hangover. As Propel ...

Protein gummies: Smart shortcut or sugary trap for your gains?

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

Nov 28, 2025 · 13 min read

Protein gummies can be a smart shortcut for your gains if they help you hit your daily protein target with predictable dosing. They can also be a sugary trap if you treat them like candy, overshoot calories, or let them replace real meals. Key takeaways Protein gummies typically top out at about 13 g protein ...

Are Clif Bars healthy or just clever marketing?

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

Nov 27, 2025 · 13 min read

For most sedentary men, a standard Clif Bar is closer to workout fuel than a healthy daily snack, with about 250 calories, 40 to 45 g of carbohydrate, and 17 to 21 g of added sugar. The real question is whether that bar is replacing planned training fuel or simply adding quick calories that do ...