This author says the diabetics will be the first to meld with machines. I think everyone with a pacemaker may take issue with that statement. The first closed-loop insulin pump is a sign of what's to come though. 

Alternate-day fasting is no more effective than good ol' fashioned dieting for weight loss. Aaaand, people on alternate-day fasting were a lot more likely to quit the diet. HDL went up a little more in the alternate-day fasting group, but other markers didn't differ between the groups. I think there is promise to "fasting" insofar as that means just not continually stuffing food into your mouth between meals. I'm less convinced of any benefit of intentional witholding of calories for days at a time.