text: exam ke liye proper sleep lena kitna zaroori hai,kyunki jab tak dimaag fresh nahi hoga tab tak concentration nahi hoga, kya tum is par believe karti ho?bilkul, achhi neend se dimaag relax hota hai, aur padhai ke dauraan focus bhi accha rehta hai, late night study se kuch nahi hota, yeh mera experience hai!