https://medicalxpress.com/news/2019-10-scientists-timekeepers-gut-immune.html This might sound silly, but I think they've figured out how the clocks in the entire body work, without realizing it. Mathematicians have already shown that there is no such thing as a perfect clock, and time can be considered absolute or relative depending on the context, making it ultimately context dependent as quantum mechanics and the speed of light illustrate. You can think of time as similar to the horizon following us around everywhere, but if our horizon shrinks or expands too much, we can no longer perceive the passage of time. Our immune system can be considered how we socialize with the world around us, including with what we normally think of as inanimate things like the air we breathe, and has proven to play a huge role in our brains as well, contrary to what they assumed for decades, merely because the arrogant bastards could not get past the blood-brain barrier with all their expensive pharmaceuticals. This discovery means they should soon be able to locate all the clocks our body uses, and figure out the lowest possible energy state of the complete system, which is the equivalent of figuring out how to tune a car just right or tune a stereo for whatever you want. The applications for cancer in particular, are mind boggling, because T-cell immune therapy has proven to be almost the magic bullet everyone's been looking for, and being able to set all their body clocks just right means their immune systems should go into overdrive.