Changes

* [[Heat Acclimation Training]] - especially important for spring races

* [[Training for your first 100 mile race]]

** [[Altitude Training Approaches]]

** [[Comparison of Altitude Training Systems]]

** [[AltoLab]] (The altitude training system I use)

** [[Viagra, Exercise and Altitude]] Surprisingly, Viagra (Sildenafil) may improve performance at altitude.

* [[Stretching]] While it is a common belief that runners should stretch, the evidence refutes this.