Climbers can pre-acclimate at home with high altitude training techniques, dramatically enhancing their success rate, safety, and enjoyment of the climb.
Altitude training techniques mimic high altitudes to help the body make positive biological adaptations. Aside from visiting (and staying in) high altitude locations, the only way to pre-acclimate to high altitude before your trip is to use a high altitude training technique (see Pre-Acclimatization).