I currently am un-able to play as I own a mac (bad mistake on my part) but after seeing gameplay, and reading up on the game and whats expected to be coming in the SA, I like the idea of stamina, i'm pretty sure only certain people could run like the players do in game like Mo Farah. Also you could incorporate adrenaline into that, maybe a faster sprint?? I think you could go one step further than an upset stomach, like Rocket explained in a power point presentation, they may be looking at a few different health problems that could occur I feel this would add a great aspect to the game as it would make you think a lot more about approaching situations. Like he mentioned big cities like Cherno and Elektro could be disease ridden, so if you spend too much time there, you get sick. Purifying water and making better food also seems like a good idea, only if it was reletivly hard to achieve, maybe you get longer sprints, more resilient to infection/disease etc. And last but not least, release this for mac :D I know it's all down to PC sales and if it is a valid option and cost effective. But i'm sure the player base would increase exponentially if it was more widely available.