Decades: 1190s 1200s 1210s 1220s 1230s - 1240s - 1250s 1260s 1270s 1280s 1290s
Years: 1238 1239 1240 1241 1242 - 1243 - 1244 1245 1246 1247 1248
Births
Deaths
... perception of their illness. People report reduced pain, and increased well being, all because they don't no their treatment does nothing. The placebo effect is extreme ...