Someone might turn to alcohol due to stress, depression, or anxiety.
If the person can cough and breathe, then they can be able to cough, and it should be encouraged since it can help dislodge the food. If it does get stuck or the person cannot breathe or speak to begin with then use the Heimlich Maneuver.
Stretching after his games, because he is increasing the strength of the muscles he uses during the games continuously making it easier next game.
Running helps not get tired during the games but it doesn't help the ability to move up and down the court.
Eating balanced means helps your body to function correctly more than helping you be agile.
Choosing water as a drink helps your skin and digestive system more than muscles that help with agility.