On an action/demo you are likely to be outside for long periods, probably without access to amenities, so you need to be prepared to look after yourself and your mates for quite a while.
Going to an action with a friend or an affinity group of friends is always safer. Try to get extra (or at least a reasonable amount of) sleep before the event and plan on needing some recovery time afterwards.
This guide is sourced from the Action Medics guide to preparing for protests.
You might also want to read our guide on Emotional and Trauma Support