How do you prime your mind before chess and recharge your mind after chess?

I would like to know your chess routine and activities you do to get in optimal mood and focus before a chess match. (E.g. simple as playing some puzzles) I would like to explore better and more efficient ways to warm up.

And how do you recharge after chess matches or study. Googling "how to recharge mental energy after playing/studying chess" did not give me any satisfying answer. I am familiar with some of the ways you can generally recharge. But I want to know  if there  is specific routines you do after playing/studying chess to recharge effectively in short time? 

Thank you in advance for sharing. 

#1
"How do you prime your mind before chess"
Solve some tactics puzzles. Think in the opening, even if you know what move to play so as to reach a state of concentration.

"recharge your mind after chess?" Analyse your lost game.

 A single Makers Mark before followed by a double at match end !

Beer

Unlike the others, for me I do not start the session with tactics. It takes away some energy.

I start with a few games of bullet to quickly get myself into the mindset of chess. This is to warm up my brain mentally into the game due to the building up of the adrenaline.

After chess, I would just walk around and participate in other activities to take my mind off chess.

Im most focused on the game if its the first thing chess related I do that day. I have no routines before a game, I just put all my energy into it. After its done I won't proceed with anything else before I analyze it than if I have time I will do all puzzles available here. If not I would skip them for now and come back later in the day to finish them (its like obligation of some kind) also its not only time problem, if I don't feel in the mode for it I would also skip them or do them unproperly - fast, on instincts, not finding a move after mistake, just look up a solution etc. Before sleep I would watch some chess content and thats pretty much it for a day.

I'm a bit confused by the question, but I assume you mean a tournament game? Or are you simple referring to a chess session (like 2 hours of online for example)

When i took the game seriously (OTB play).  My pregame routine was:

Do some tactics to warm up the brain.  You warm up your other muscles so why not the brain.

Stay hydrated.

Post game routine:

Do some quick analysis with the opponent.

Do some quick analysis and noted on my own.

Take a nap between rounds if possible.

I am presuming it's an online session.

My approach would be different in an over-the-board tournament.

I notice that most of the replies suggest some sort of chess activity such as solving tactics puzzles.

In my opinion, chess is the one thing you should NOT do just before an important game.

Your chess preparations should be made in the weeks and days before the big game. Once the big day rolls around, your preparations should focus on your health, attitude and psychological readiness.

Get a good night's sleep the evening before. Eat a decent breakfast, but nothing too heavy. Then focus on your emotional readiness.

Relax. Center yourself. If you need some psychological encouragement, to put yourself in an optimistic, positive mood, then play over a game that you played at some earlier time and are proud of. Get yourself ready for the coming game, both physically and mentally.

#11
Fischer played tennis right before his games at Reykjavik 1972 against Spassky. He arrived late at the chess board, now forbidden. I also played my best tournament after I went swimming before the rounds.