Steroids for endurance?

[liffalot]

you have gotten tremendous advice on here and I will add the most obvious way to increase endurance and advice that was given to me by an Ironman. RUN MORE. you want to build great endurance you gotta run a lot and run often. cannot go out there and run 2 miles 3X per week. thats only 6 miles. you gotta put in the mileage. i am talking 20, 25, 30+ miles per week.

a nice slow pace for 50 minutes will typically be around 6 miles.. so its not as daunting as it sounds. make sure you have good shoes too, $20 walmart shoes and you will run into major problems.. gotta fork over $100 for decent shoes.. me personally i always go with nikes but everyone has different preferences of brands they like. i would find a shoe store that will measure your feet and fit you well. the kids at foot locker don't know shit

Riding the bike is also a viable option. Running kills my joints so I gave it up a litte while back (good riddance, hated that shit anyway ), but riding the exercise bike for an hour a day can produce similar results depending on your intensity.