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Sleep
Sleep and testosterone: what the evidence suggests
A practical look at sleep duration, sleep timing, and why Dr. Testo treats recovery as a core input rather than an isolated score.
Read guideDr. Testo Learn
Understand testosterone. Build better decisions.
Evidence-led guides connect testosterone, hormones, and daily factors to the model and protocol inside Dr. Testo.
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Featured guide
01 / 06Latest guides
Six guides across four complete language versionsTraining
Resistance training and testosterone: where it fits
Understand why resistance training is always present in Dr. Testo's Required Core and how the app separates action from exaggerated promises.
2 min readRead guideStress
Stress and testosterone: tracking a changing signal
See how life stress can be represented as a changing signal and why Dr. Testo distinguishes today's context from a longer-running pattern.
2 min readRead guideLifestyle
Alcohol and testosterone: dose, pattern, and context
A measured explanation of why alcohol patterns matter, what current evidence can support, and how the signal appears inside Dr. Testo.
2 min readRead guideBody composition
Body composition and testosterone: think in trends
Why body composition is handled as a longer-running condition, how lifestyle change can matter, and where it connects to the Dr. Testo model.
2 min readRead guideFundamentals
Understanding testosterone levels across a day and a year
Learn why a testosterone value needs time and reference context, and how Dr. Testo presents Starting, Base, Today, and future checkpoints.
2 min readRead guideKnowledge becomes a protocol
Move from understanding a factor to seeing where it fits in your own system.
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