Posts in Fitness & physical performance

Train with your hormones, not against them. We cover strength, hypertrophy, VO2 max, recovery, and injury prevention through an endocrine lens. Discover how training, nutrition, and daily activity can impact testosterone levels and support natural balance. Use estradiol balance for joint health, plan sleep taper cycles before competitions, and turn smart physiology into new PRs.

The metabolic truth: How many calories does masturbation actually burn?

The metabolic truth: How many calories does masturbation actually burn?

Dr. Susan Carter, MD avatar
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Dec 07, 2025 · 13 min read

Masturbation does burn calories, but not nearly enough to count as a workout. Here is what the research says, how many calories jerking off actually burns, and how to fold it into a smart, male-focused weight plan. “Masturbation is normal, healthy sexual behavior for most men. It burns a few calories and can ease stress, ...

Henry Cavill weight training: The physiology behind the Man of Steel’s physique

Henry Cavill weight training: The physiology behind the Man of Steel’s physique

Dr. Bruno Rodriguez, DPT, CSCS avatar
Dr. Bruno Rodriguez, DPT, CSCS: Strength, Recovery, and Physical Therapy Expert
Dec 07, 2025 · 10 min read

Building a superhero body requires more than just showing up to the gym. From metabolic demands to neuromuscular adaptation, here is the clinical science behind the training and recovery habits that power Henry Cavill’s transformation. “When we look at a physique like Cavill’s, we often fixate on the heavy lifting. But the real magic happens ...

What do elliptical trainers do for your physique and longevity?

What do elliptical trainers do for your physique and longevity?

Dr. Bruno Rodriguez, DPT, CSCS avatar
Dr. Bruno Rodriguez, DPT, CSCS: Strength, Recovery, and Physical Therapy Expert
Dec 07, 2025 · 13 min read

Elliptical trainers are more than a backup plan when every treadmill is taken. Here is what they actually do to your muscles, joints, heart, and hormones, and how men can use them for real results. “When guys ask me what do elliptical trainers do, they usually underestimate them. Used with real intent and proper form, ...

How many calories do you burn lifting weights, really?

How many calories do you burn lifting weights, really?

Dr. Bruno Rodriguez, DPT, CSCS avatar
Dr. Bruno Rodriguez, DPT, CSCS: Strength, Recovery, and Physical Therapy Expert
Dec 06, 2025 · 12 min read

Weight lifting does not torch calories as fast as running, but for men it can reshape how many calories you burn all day. Here is how many calories lifting weights burns, how it compares to cardio, and how to program your training for real fat loss. “Most guys wildly overestimate how many calories they burn ...

Can low testosterone cause joint pain?

Can low testosterone cause joint pain?

Dr. Susan Carter, MD avatar
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Dec 06, 2025 · 13 min read

Many men blame age or old injuries for aching knees and stiff shoulders. But if you also feel tired, weaker in the gym, and less interested in sex, low testosterone might be part of your joint pain story. “When men ask me ‘can low testosterone cause joint pain,’ I tell them this: testosterone is not ...

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