Flying can sometimes be the thing that tips your body's sedentary work/lifestyle over the edge.
Living on a hill that is also a school route does also not help in winter (icy paths from 'wheeeeeeeeeee' skidding school children). Heck, the hill is enough to throw out most recommended excercise processes - unless sliding for 10 mins up/down the hill till you reach flatter ground where you can THEN (just about) exercise from sounds reasonable.
Sorry. I'm just grumbling. I need to more exercise; I'm aching whether stood, sat or laying down, and work involves mostly sitting talking with people.
Mumble, mumble. Grumble, grumble. I really should not feel sorry for myself. Please ignore me. The iPlayer defying us trying to watch Being Human last night did not help.