I'm way late on this fascinating discovery, but my partner told me yesterday that the scientists say you should wait until about an hour after waking up to have caffeine. Otherwise it overloads your cortisol production and causes you to crash. When you wait, you're effectively letting your natural processes wake you up, then augmenting them with the additional kick from caffeine. Gotta say, waiting ~30 more minutes for my cup of tea isn't terribly enjoyable, but I appreciate the science behind it!

A not-so fascinating discovery is that my neighborhood seems to have a glut of new Japanese honeysuckle coming up, including a significant section of new growth in my yard. So. That's a fun project I didn't need. I didn't realize how easily its spread by birds.