anorexia
n[U]
(medical 医)
1 loss of the wish to eat 厌食; 食欲丧失.
2 (also anorexia nervosa ) mental illness that causes abnormal fear of eating and thus leads to dangerous loss of weight 神经性厌食症.
Soon the hobby leads to travel, perhaps to a meeting in another town, possibly a trip abroad in search of a rare specimen, for collectors are not confined to any one country.