Many people in Tanzania - and across Africa - consult traditional healers for everything from curing illness to good-luck charms. Government regulations and Western medicine may have changed some of their activities, but from herbalists to diviners, they have adapted and remain important figures. Photographer Sasja van Vechgel met some of them. Here a healer, in his eighties, holds a horn containing medicine; he practises from a “kitala”, a specially made village hut for dispensing medicine.