3 ms·

Running is bad for your knees. You should learn to do better and more substantive things with your life. Eat a vegetable. Watch a pigeon. Cure world hunger.

• edem 10y ago
  Or do HIIT training instead of running around for hours...
• nradov 10y ago
  False. Running is not bad for your knees. http://onlinelibrary.wiley.com/doi/10.1002/acr.22939/abstract http://onlinelibrary.wiley.com/doi/10.1002/acr.22939/abstrac...