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All the latest articles from our medical experts on testosterone, men's health, and longevity.

Sex hormone binding globulin and testosterone in men: what your SHBG levels really mean

Sex hormone binding globulin and testosterone in men: what your SHBG levels really mean

Dr. Alexander Grant, MD, PhD avatar
Dr. Alexander Grant, MD, PhD: Urologist & Men's Health Advocate
Dec 09, 2025 · 13 min read

Sex hormone binding globulin is more than a lab extra – your SHBG levels help explain why you can feel low testosterone symptoms even when your “total T” looks fine on paper. “When guys see SHBG on their lab report they often skip past it, but that little number can tell us why a ‘normal’ ...

What is a red light therapy hat and should men use one for hair loss?

What is a red light therapy hat and should men use one for hair loss?

Dr. Susan Carter, MD avatar
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Dec 08, 2025 · 14 min read

If you are staring at your hairline in the mirror and wondering what is a red light therapy hat and whether it can save your fade, you are not alone. Here is how these glowing caps work, what the science says, and how to decide if one fits into your hair-loss game plan. “A red ...

The best multivitamin for men over 50: how to choose between popular brands like nature made and centrum

The best multivitamin for men over 50: how to choose between popular brands like nature made and centrum

Dr. Susan Carter, MD avatar
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Dec 08, 2025 · 14 min read

For men over 50, the “best” multivitamin is less about the logo on the bottle and more about whether the formula matches your biology, diet, and medications. Here is how to choose smartly — and where Nature Made Men’s Multivitamin 50+ and Centrum Men 50+ fit in. “By the time a man hits 50, subtle ...

Semaglutide and testosterone: The science of combining therapies for men

Semaglutide and testosterone: The science of combining therapies for men

Dr. Alexander Grant, MD, PhD avatar
Dr. Alexander Grant, MD, PhD: Urologist & Men's Health Advocate
Dec 08, 2025 · 10 min read

For men fighting the double burden of obesity and low testosterone, standard diet advice often fails. New research suggests that combining metabolic support with hormone optimization creates a synergy that protects muscle while burning fat. “Men often view their weight and their hormones as two separate problems to solve. In reality, they are deeply interconnected. ...

Metformin over the counter: why it requires a script and how to get one safely

Metformin over the counter: why it requires a script and how to get one safely

Dr. Susan Carter, MD avatar
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Dec 08, 2025 · 11 min read

While metformin is gaining a reputation as a wonder drug for longevity and weight loss, you simply cannot find metformin over the counter at your local pharmacy. Here is the science behind why it is regulated, how it affects male physiology, and the legitimate ways to access it online. “The interest in metformin now extends ...

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