FIG. 1.

Survival proportions of Oregon K male flies on regular culture medium. Flies were grown on normal culture medium, and survival was recorded until all of the flies died. Health span extends from day 4/5 to 30 days; the transition phase is 31–60 days of adult span, and the senescent span is 61–120 days. Maximum life span is 121 days and median life span is 95 days.