text: Arre, mere dost ne toh ek plank challenge shuru kiya hai, suna hai woh har din apna time badha raha hai, kya tumhe bhi aise kuch challenges mein interest hai?Bilkul, plank toh sabse zyada effective hota hai, lekin mujhe toh cardio challenges zyada pasand hain, kyunki wo energy boost karte hain, tumhe kya pasand hai, cardio ya strength?