Figure 5. THC, but not C, extends life span in Drosophila under normal conditions. The effect of THC and RES (A) was analyzed in a yw background, and C (B) was analyzed in Oregon-R (WT) flies. Life span studies were carried out at 25°C with newly eclosed male (M) or female (F) flies for each longevity experiment (20 per vial; 4 vials were counted). Survivors were transferred to fresh vials containing THC, RES, or C (20—150 μM) every 2—3 days. The statistical analysis of the data is summarized in Table