holy batman, thats a quick time! i know im pretty unfit compared to my old self but atm i tend to run 5k in about 25/26 mins~ and i can still go on but at a reduced pace, but atm i cannot get past 25mins in 5k as when i run on the tready i get to hot and theres little air/wind which makes it harder to breathe, when i run out side my pace tends to vary to much causing my time to increase.

yeah i know that running isnt all of it, but its a great place to start