Sexual health

Start with what matters: desire, function, and comfort. We explain libido, arousal, erectile function, orgasm, and sexual pain, and how medicines and hormones influence them. Clear language, evidence-based guidance, and practical steps to understand your body and improve sexual well-being.

Finding the best men’s groin deodorant: Science, safety, and what actually works

Finding the best men’s groin deodorant: Science, safety, and what actually works

Dr. Alexander Grant, MD, PhD avatar
Dr. Alexander Grant, MD, PhD: Urologist & Men's Health Advocate
Dec 10, 2025 · 15 min read

The best men’s groin deodorant is a low-fragrance, genital-safe formula that reduces odor by suppressing bacteria like Corynebacterium and Staphylococcus (which break apocrine sweat into volatile fatty acids and sulfur compounds), controls moisture, and protects the skin barrier rather than stripping it. Here’s how to choose one you can use daily without turning “freshness” into ...

How do you measure your penis correctly, according to a urologist

How do you measure your penis correctly, according to a urologist

Dr. Alexander Grant, MD, PhD avatar
Dr. Alexander Grant, MD, PhD: Urologist & Men's Health Advocate
Dec 09, 2025 · 14 min read

Urologists measure penis length as “bone-pressed” length. Press a rigid ruler into the pubic bone on the top side and measure straight to the tip (glans). Measure girth by wrapping a tape measure around the mid-shaft. With this standardized method, the average erect length is about 5.1 to 5.5 inches and the average erect girth ...

What is sex hormone binding globulin? How SHBG levels shape testosterone in men

What is sex hormone binding globulin? How SHBG levels shape testosterone in men

Dr. Alexander Grant, MD, PhD avatar
Dr. Alexander Grant, MD, PhD: Urologist & Men's Health Advocate
Dec 09, 2025 · 14 min read

Sex hormone binding globulin is a liver made protein that binds testosterone and other sex hormones, and SHBG levels help predict how much testosterone is actually available to your tissues. If you have low testosterone symptoms but “normal” total testosterone, SHBG is often the missing piece that explains why you still feel off. “Most guys ...

Masturbation MET value and BMR: What science shows

Masturbation MET value and BMR: What science shows

Dr. Susan Carter, MD avatar
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Dec 07, 2025 · 16 min read

Frequent masturbation or ejaculation does not meaningfully increase basal metabolic rate, or BMR, in men, and the calories burned are usually small. Based on light activity MET ranges and extrapolation from sexual activity studies, a typical 10 to 15 minute session is often estimated at roughly 15 to 40 kilocalories (about 2 to 3 METs), ...

How long honey packs stay in your system: What research says

How long honey packs stay in your system: What research says

Dr. Alexander Grant, MD, PhD avatar
Dr. Alexander Grant, MD, PhD: Urologist & Men's Health Advocate
Dec 06, 2025 · 17 min read

Honey pack: How long it actually stays in your system for men (risks) In most healthy adult men, a honey pack that contains sildenafil is mostly cleared from the bloodstream in about 20 hours, while tadalafil can linger for about 3 to 4 days.[8,9] “Honey pack” sexual-enhancement sachets are supplement products that often contain undeclared ...

Special OfferLab panels included: $300/year free for all members