Nigel@thanius Best of luck, I had it a few years ago and to my amazement the exercise did work - the version that I used was rather less vigorous though... it was on an advice sheet I downloaded from a UK hospital service - too long ago for me to recall now, sorry.
GNU social JP is a social network, courtesy of GNU social JP管理人. It runs on GNU social, version 2.0.2-dev, available under the GNU Affero General Public License.
All GNU social JP content and data are available under the Creative Commons Attribution 3.0 license.