Thanks! The 7-minute workout sounds reasonable and I might consider adding elements of it into my 4-minute abs workout I have already. It wouldn't replace running altogether since 1) I enjoy running, so it is not time lost and 2) I'm training for 5k cross country races.
This is the public group instrumental rationality diary for June 1-30; it's going up pretty late (sorry!) but entries for earlier in June are welcome.
Thanks to cata for starting the Group Rationality Diary posts, and to commenters for participating!
Next diary -- July 1-15
Immediate past diary -- May 16-31
Rationality Diaries archive