All the latest articles from our medical experts on testosterone, men's health, and longevity.
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. ...
In clinical trials of TRT for hypogonadism, libido, energy, and mood often improve within about 3 to 6 weeks, while erection quality and muscle and fat changes typically take 12 to 16 weeks and bone benefits start around 6 months. Because different tissues respond on different timelines, this guide shows what to expect month by ...
Diet Coke and other diet sodas contain essentially no calories, so they technically do not break a fast. But for many men, the sweet taste and caffeine can still shift hormones like insulin and cortisol in ways that can undercut why you are fasting in the first place. “If a guy asks me, ‘does diet ...
A “normal” lab range is a population-based reference interval (often the middle 95%); “optimal” is the range that best aligns with your symptoms, function, and risk profile. Many men are told their blood work is “normal” even though they feel tired, softer, and off their game. Understanding optimal vs normal lab ranges can turn a ...
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 what is in the vial, how it is ...