You can't walk when.

Recreational walking can be harmful for some diseases and conditions. Contraindications to walking can be absolute and relative. In the latter case, walking is possible after preliminary preparation. Detailing of contraindications and preparation features in case of relative contraindications in this video conversation.
Video Conversation is for EVERYONE
Best regards, Yuri Tsukanov.
PS: The list of videos I have already published on the channel is presented on my website BesedyVracha.ru