what determines penis growth

Penis growth is largely influenced by the action of the hormone dihydrotestosterone (DHT). During embryonic development, males are exposed to DHT, which organizes male genital development. Later, during puberty, DHT levels rise again, stimulating penile tissue growth. The activation by DHT at this stage results in increased penis length and growth in the genital area 1.

Key factors:

1. Embryonic Development: Exposure to DHT organizes initial male genital development.
2. Puberty: Increase in DHT levels triggers penile growth.
3. Endocrine Factors: Environmental endocrine disruptors and early puberty might affect DHT levels and thus influence penis length over generations 1.

Andrew Huberman notes that longer penis lengths observed in recent studies could be linked to higher DHT levels across recent generations, potentially due to environmental factors affecting hormone levels 1.