Hi guys, Welcome to the Advanced Video Search Engine, and you are watching হিমোগ্লোবিন কি? এর কাজ কি? কখন বাড়ে? কখন কমে? #doctorjoydeb #doctoronyoutube #banglahealtheducation. That video is uploaded by Dr.Joydeb Singha at 2023-07-11T11:12:41-07:00. We are promoting this video only for entertainment and educational purpose only. So, I hope you like & enjoy it. [lZiafRr7QAw]