Ripples of muscle lower tesosterone

Obesity, Exercise and the Testosterone Sweet Spot

He looked absolutely shredded. An all-natural body builder with more ripples than a lake on a windy day, he worked out 3 hours daily and it showed. But his testosterone levels were in the tank, far lower than normal and similar to someone who is overweight and doesn’t exercise at all. How is this possible? […]

Too Much Too Long: Steroids, Testosterone and Male Fertility

The “point-of-no-return” concept is everywhere in our lives. Innocence, virginity and aging are all great examples of the irreversibility of life. In the past it never occurred to me that steroid-induced male infertility followed the same laws of nature. But it does. Steroid Freefall I have taken care of men from around the globe who want […]

Sagrada Familia

The Data Is In: Little Care for Infertile Men

I was hoping my hunch wasn’t true…but it was. A decade ago, while debating with colleagues in Barcelona, I noted a trend in the medical care of infertile American men. Basically, they weren’t getting care. Yes, some were having semen analyses, but that’s about it — and that’s not “care.” Care includes documenting a patient’s […]

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The Evolution of a Men’s Prenatal Vitamin

Over the last decade, my view of vitamin supplements has evolved. Yes, I know that half of all Americans take a multivitamin daily. Maybe to replace dietary deficiencies. Or to keep healthy, prevent disease or stay young. But the honest truth is that except for treating actual vitamin deficiencies, hard evidence showing that vitamins can […]

climbing mountains, staying sexually healthy

Have You Hit Your Sexual Peak?

When do we hit our peak? Well that depends on how you define peak. Peak muscular strength in men occurs around age 26. In terms of smarts, Nobel Prize winners make their big discoveries at an average age of 40 years. And, as you might already know, men peak emotionally even later, at 50 years. But do […]

Peeling Off the Layers of Sexual Dysfunction

This Case of the Year is an actual patient of The Turek Clinic. A 13th century Franciscan friar named William of Occam proposed a way of thinking that is popular even today. Occam’s Razor states that simpler solutions are more likely to be correct than complex ones. Alternatively viewed, if one theory explains all observations, then […]

Saving dollars and saving sperm

Is "Saving it Up" a Myth?

She tells you that “it’s that time of the month,” which means that it’s baby-making time. You’ve been waiting for this and have duly refrained from sex or masturbation to stockpile the biggest quantity of sperm you can during her time of need. Is “saving up” sperm like retirement money a good idea? 401k Fund […]

Oil can and lubrication.

The Slippery Truth About Lubricants During Conception

Believe it or not, we know a lot about vaginal lubricants. Here are two statistics: 2 of 3 U.S. women use vaginal lubricants to help with dryness. And, among couples trying to conceive, 1 in 4 use lubricants. But aren’t lubricants bad for making babies? Toxic Lubes It’s quite clear that in the laboratory setting […]

Complex leaf pattern in nature.

Are the Sons of Infertile Men Also Infertile?

There are certain questions in life that have never been answerable until now. For example, given that many human diseases are treatable, how long can we actually live?  It took the jet age for us to figure out just how much g-force the human body can handle. And it’s only been a hundred years or […]

Can You Be Too Fit to Be Fertile?

It’s well known that women athletes can stop having regular periods if they exercise too much. Termed “exercise-induced amenorrhea,” this prevents pregnancy during times of extreme physiological stress. Think of it as Darwin would: Why would you want to bear children as a cavewoman running for your life? Survival Comes First The mechanism for this […]