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The Science of the functional overreachingIn Sports Science, we view an intense training block as a period of functional...
04/21/2026

The Science of the functional overreaching

In Sports Science, we view an intense training block as a period of functional overreaching. You have intentionally pushed your body into a state of temporary "system failure" to trigger a survival response.

In short: You spend the training block digging a hole. You spend the taper filling that hole and building a mountain on top of it.

Link in bio for the breakdown.

04/20/2026

Let the biology take over.

The taper is a physiological pivot. It’s the intentional shift from a catabolic state (breaking down) to an anabolic state (building up).

Training is the work, but the taper is the recovery that actually makes you faster. If you don’t time it right, you’re leaving performance on the table.

Do you know how long your taper window is?

Your hormones adapt to the stimulus you provide. Strength training prioritizes acute anabolic output. Endurance training...
04/19/2026

Your hormones adapt to the stimulus you provide. Strength training prioritizes acute anabolic output. Endurance training creates sustained cortisol demands. You cannot optimize both simultaneously without tracking the physiological cost. Stop trying to maximize everything. Decide what you actually want to achieve, and align your stimulus with that specific target.

04/18/2026

Testosterone & Cortisol are partners, not enemies.

04/17/2026

Total Testosterone tells you what your body has in storage. But potential doesn't build muscle, and reserves don't clear brain fog. Up to 98% of your testosterone is locked up and unavailable for use. We measure Free Testosterone because it is the ex*****on metric. It is the unbound, biologically active fraction that is entering your cells right now to drive adaptation.

What happens when your stress stays elevated for too long? Your body eventually adapts to protect you by shutting down t...
04/16/2026

What happens when your stress stays elevated for too long?

Your body eventually adapts to protect you by shutting down the peaks. You lose the morning peak that gives you drive. You lose the training peak that gives you power. Instead of a healthy curve, you get a flat line, leaving you feeling heavy all day and restless all night. Burnout is biology, not a lack of discipline. Rebuilding the curve starts with measuring where you are.

The Testosterone to Free Cortisol ratio. Your metric for systemic balance.Your hormones don't operate in a vacuum. Looki...
04/15/2026

The Testosterone to Free Cortisol ratio. Your metric for systemic balance.

Your hormones don't operate in a vacuum. Looking at one number is like looking at a single piece of a puzzle. The Testosterone to Cortisol Ratio tracks the relationship between your anabolic drive and your stress load. It tells if your training is actually building you up, or if it is wearing you down.

Willpower is a biological output. Drive requires fuel. You cannot out-hustle a tired system. When your sleep is dialed i...
04/14/2026

Willpower is a biological output.

Drive requires fuel. You cannot out-hustle a tired system. When your sleep is dialed in and your stress is managed, discipline feels automatic. When your system is drained, everything feels heavy. Fix the biology first, and the willpower follows.

Free Testosterone is the active driver. A saliva-draw shows what's available in your system right now.Most of the testos...
04/14/2026

Free Testosterone is the active driver. A saliva-draw shows what's available in your system right now.

Most of the testosterone circulating in your bloodstream isn't actually usable in that moment. Roughly 98% of it is tightly bound to proteins – primarily S*x Hormone-Binding Globulin (SHBG) and albumin.

The remaining 2% to 3% is your Free Testosterone. Because it isn't bound to these transport proteins, it is the biologically active fraction. It is free to enter cells, bind to androgen receptors, and drive the physical and mental effects we associate with testosterone, from muscle protein synthesis to energy and mood regulation.

12/23/2025

Helsinki 19.–20.12.2025. +26°C (inside). White sand. Pressure to perform. .fi

We ran hormone testing courtside, collecting saliva samples from athletes and referees to track free testosterone, free cortisol and the T/C ratio across the weekend:
• How each match loaded the system
• How balance fought its way back between games
• How capacity to perform and capacity to recover shifted from game to game

Hormone intelligence for human performance.

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