I want to talk about something that took me longer than it should have to figure out, and I think a lot of dads in their 30s are in the same position without realizing it.

Earlier this year I finally went in for bloodwork. I'd been putting it off for a while the way most guys do when they feel basically okay and life is busy. My wife eventually just made the appointment, which is honestly how a lot of these things happen.

Everything came back in normal range. Doctor went through the results, said I looked fine, told me to keep doing what I was doing. Standard stuff. I walked out feeling like I'd gotten a clean bill of health.

I also walked out still feeling the same way I'd felt going in. Tired more than I should be. Recovery slower than it used to be. Carrying weight around my midsection that wasn't responding the way it should to training and eating reasonably well. Motivation that had to be manufactured rather than felt.

When I got home I actually looked at my testosterone number. It was in the normal range. Low end of normal, but normal. I looked up what that reference range actually means and that's when things got interesting.

The standard reference range for testosterone in men is roughly 300 to 1000 nanograms per deciliter. That is an enormous range. A 36 year old at 310 and a 36 year old at 920 both receive the same result. Both are told they're normal. Those two men feel nothing alike.

The concept of optimal versus normal is something most conventional medicine doesn't have time to address in a fifteen minute annual physical. Normal means you're not in a pathological state. It doesn't mean you're functioning at the level you could be or should be for your age.

For men in their 30s the lifestyle factors that affect testosterone are significant and largely controllable. Sleep is probably the biggest one most guys underestimate. Testosterone is primarily produced during deep sleep and chronically short or interrupted sleep, the kind that comes standard with young kids, suppresses production measurably. Even a few nights of poor sleep shows up in bloodwork.

Body composition matters too. Visceral fat, the stuff that builds up around your middle, converts testosterone to estrogen through a process called aromatization. The more of it you carry the more of that conversion happens.

Alcohol suppresses testosterone production for up to 24 hours per drinking session and also disrupts the sleep quality that production depends on. Chronic stress elevates cortisol which directly competes with testosterone. Training helps but overtraining without adequate recovery can suppress levels rather than raise them.

None of this is secret information but it also doesn't come up at your annual physical. You get a number, you get told it's normal, and you go home.

If you've been feeling off and can't quite put your finger on why, get your bloodwork done and actually look at where your numbers fall within the range, not just whether they're technically normal. And then look at the lifestyle variables that you can actually control before concluding that everything is fine.

Most of the things that move testosterone in the right direction are the same things that make you a healthier, more functional dad across the board. Sleep more. Reduce the visceral fat. Drink less. Manage stress. Train consistently without overdoing it.

You might be normal on paper and still have significant room to feel a lot better than you do.