After a certain age, not many of us look forward to our next birthday with the same level of enthusiasm we once did. Of course, there are many aspects of getting older that are beautiful—the memories we accumulate and even those smile lines that prove we’ve really lived and laughed—but if there were a switch we could flip to slow down the aging process (to counter the waning energy, to keep those memories sharp, to stay healthy enough to continue having amazing experiences), then we’d probably all flip it in a heartbeat. READ MORE