My training has been improving from month to month recently and now feel at my fittest, however, I´ve just entered Bolivia and after a good week or two of trying to tackle hights of over 4000m I´m still finding it as hard as day 1.

Does anyone have any inside knowledge or training tips to help me run in these altitudes as sooner or later, I fear, Bolivian street food will take it´s toll?

Cheers