Schwitzt man beim Schwimmen?
https://www.swr.de/wissen/1000-antworten/schwitzt-man-beim-schwimmen-102.html
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.