Paul Turek

Then when you outrun the woolly mammoth and you're behind a rock and you grab the berries and you catch a nap, boom, testosterone shoots up because it's rest and restore and you have to rebuild for the next run. How quickly do you think that occurs in humans? Days, easily. Chronic stress is it. We love acute stress. All species love acute stress. We love that starvation, intermittent fasting.

Then when you outrun the woolly mammoth and you're behind a rock and you grab the berries and you catch a nap, boom, testosterone shoots up because it's rest and restore and you have to rebuild for the next run. How quickly do you think that occurs in humans? Days, easily. Chronic stress is it. We love acute stress. All species love acute stress. We love that starvation, intermittent fasting.

It's really healthy, but not low-level chronic stress, not connected to your computer, not your emails, not the workday that never ends. Terrible for us. And the best manifestation is erections because the erections will fall if you're under stress too. Penis has a mind of its own, according to Da Vinci. I had a guy come in, 25 in San Francisco, a startup guy.

It's really healthy, but not low-level chronic stress, not connected to your computer, not your emails, not the workday that never ends. Terrible for us. And the best manifestation is erections because the erections will fall if you're under stress too. Penis has a mind of its own, according to Da Vinci. I had a guy come in, 25 in San Francisco, a startup guy.

And he comes in and says, I got to see you. I said, why? He said, I lost my erection yesterday. He's 25. I said, first time? He said, yes. I said, all right, come on in. So he comes in. And he's got his act together. It looks good. And I said, what happened? He said, I just lost my erection. It's never happened to me before. I think something's wrong. I said, okay, tell me about yourself.

And he comes in and says, I got to see you. I said, why? He said, I lost my erection yesterday. He's 25. I said, first time? He said, yes. I said, all right, come on in. So he comes in. And he's got his act together. It looks good. And I said, what happened? He said, I just lost my erection. It's never happened to me before. I think something's wrong. I said, okay, tell me about yourself.

He's just getting his A round of funding. He's traveling half a million miles a year. He sleeps three or four hours a night, if any. And he's constantly running. And I said, congratulations. Welcome to the human race. And she's like, what are you talking about? You're not impervious. Stress has its effects. So clearly, fertility. Oh, the great study was a moderate exercise, moderate exercise, man.

He's just getting his A round of funding. He's traveling half a million miles a year. He sleeps three or four hours a night, if any. And he's constantly running. And I said, congratulations. Welcome to the human race. And she's like, what are you talking about? You're not impervious. Stress has its effects. So clearly, fertility. Oh, the great study was a moderate exercise, moderate exercise, man.

I wrote a blog on this called Can You Be Too Fit to Be Fertile? Moderate exercise went to extreme exercise, measured as two hours a day of VIO2, 80% maximum capacity. So pretty heavy workouts for 12-week periods. So moderate to extreme, and then back to moderate. Sperm counts fell by 40% when moderate to extreme, and testosterone fell by 50%, and then went back up.

I wrote a blog on this called Can You Be Too Fit to Be Fertile? Moderate exercise went to extreme exercise, measured as two hours a day of VIO2, 80% maximum capacity. So pretty heavy workouts for 12-week periods. So moderate to extreme, and then back to moderate. Sperm counts fell by 40% when moderate to extreme, and testosterone fell by 50%, and then went back up.

And there's also military studies of men under acute stress during hell weeks in training where they were taking their testosterone and LHs, and they were dropping by about 50%. With severe stress. And that's okay for a day or two or a week. But when you're doing it chronically, we're not built for that, Peter. We're not built for chronic stress. That's a longevity issue.

And there's also military studies of men under acute stress during hell weeks in training where they were taking their testosterone and LHs, and they were dropping by about 50%. With severe stress. And that's okay for a day or two or a week. But when you're doing it chronically, we're not built for that, Peter. We're not built for chronic stress. That's a longevity issue.

All natural production.

All natural production.

And the two different classes are the LH and Clomid versus testosterone. So unlike testosterone shutting off the natural production, the LH, the ACG and the Clomiphene and Clomiphene will stimulate natural production. So you keep your testicular size, you maintain your fertility. Whereas the others, you're going to shrivel up your testicles and not maintain your fertility.

And the two different classes are the LH and Clomid versus testosterone. So unlike testosterone shutting off the natural production, the LH, the ACG and the Clomiphene and Clomiphene will stimulate natural production. So you keep your testicular size, you maintain your fertility. Whereas the others, you're going to shrivel up your testicles and not maintain your fertility.

And you can't generate levels that you can with the exogenous testosterone with these. You'll never get to 3,000. You can't do that.

And you can't generate levels that you can with the exogenous testosterone with these. You'll never get to 3,000. You can't do that.

No signals, no gas to the engine. It's nuanced. There are formulations that are topical that are less potent that way, less inhibitory than injectables. So there are variations in the spectrum of exogenous testosterone that will maintain some of your fertility.

No signals, no gas to the engine. It's nuanced. There are formulations that are topical that are less potent that way, less inhibitory than injectables. So there are variations in the spectrum of exogenous testosterone that will maintain some of your fertility.