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

Can Vitamin D impact testosterone?

Can Vitamin D impact testosterone?

Dr. Susan Carter, MD avatar
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Oct 28, 2025 · 14 min read

Low testosterone and vitamin D deficiency often show up together in men, but they are not the same problem. Here is how low testosterone vitamin D patterns interact, when vitamin D can help, and when you still need to think beyond supplements. “When a man walks into my clinic with fatigue, low sex drive, and ...

Estrogen in men: Low Estradiol can ruin your TRT therapy

Estrogen in men: Low Estradiol can ruin your TRT therapy

Dr. Susan Carter, MD avatar
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Oct 26, 2025 · 13 min read

Low estradiol in men is common, especially on testosterone therapy, and can quietly drain libido, mood, and bone strength. Here is how to recognize low estradiol, get the right tests, and correct it without crashing your hormones. “Men often think estrogen is the enemy, but low estradiol in men is just as harmful as high ...

L-carnitine benefits: fuel your mitochondria and support androgen receptors

L-carnitine benefits: fuel your mitochondria and support androgen receptors

Dr. Alexander Grant, MD, PhD avatar
Dr. Alexander Grant, MD, PhD: Urologist & Men's Health Advocate
Oct 25, 2025 · 14 min read

L carnitine benefits go beyond “fat burning”: this amino-acid–derived compound helps your mitochondria use fat for fuel, may support androgen receptors in muscle, and can aid recovery when you dose and stack it the right way. “L-carnitine is not a magic testosterone pill, but for the right man it can make training feel more sustainable, ...

7 low testosterone symptoms: Get small daily joys back!

7 low testosterone symptoms: Get small daily joys back!

Dr. Alexander Grant, MD, PhD avatar
Dr. Alexander Grant, MD, PhD: Urologist & Men's Health Advocate
Oct 23, 2025 · 14 min read

Low testosterone symptoms often look like normal aging, stress, or burnout. Understanding what is hormone-driven, and what is not, can help you get energy, sex drive, and daily motivation back on track. “Most men do not come in saying ‘I think I have low testosterone.’ They come in saying ‘I am tired, my sex drive ...

Sauna health benefits: steam or infrared?

Sauna health benefits: steam or infrared?

Dr. Bruno Rodriguez, DPT, CSCS avatar
Dr. Bruno Rodriguez, DPT, CSCS: Strength, Recovery, and Physical Therapy Expert
Oct 21, 2025 · 14 min read

Regular sauna sessions can act like “light cardio” for your blood vessels, lowering inflammation and supporting heart health when you use them often and safely. Here is how to get real sauna health benefits without taking unnecessary risks. “Think of the sauna as a controlled stress test for your circulation. Done right, short, frequent heat ...

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