What Are the Fastest and Slowest Lanes of Human Evolution?

What are the faster changes witnessed within the genetic, physical, and epigenetic evolution of the human species?

In other words — what human ‘part’ evolves the fastest? Or slowest? And which ‘part’ rarely ever evolves?

It’s curious.

Human beings can show signs of evolutionary changes over short periods of time — surprisingly shorter than you’d think.

One could wonder forever; so I decided to do some research on this.

Image (2017) by Elias from Pixabay.

#1. Genetic Changes: 10–1,000 -/+ Years

Real-World Examples:
→ Evolution of lactose tolerance over 7,000 years from domestication of dairy animals.
→ Allele frequency changes due to disease, environment, or social pressures.
→ Sickle cell resistance in African populations due to malaria.
→ Rise in antibiotic resistance in bacteria from widespread antibiotic use.
→ Tibetan EPAS1 gene adaptations for high-altitude survival.

“Times change, and we change with them.”

— Ancient Roman proverb

#2. Physical Changes: 20–30 Years