- The human body adapts and evolves as a direct result of its external and internal environments
- Vary your diet, eat fresh seasonal vegetables, eat fish, red meat, white meat, mix up the colours, eat fruit…. etc
- Vary your exercise, do lots of different gym programs, play a variety of sports, don’t do the same thing every time you train
- Vary your lifestyle, go to new places, try new activities, learn new things
- Variety and progression = Constant improvement