Can someone tell me the bad and good facts of smoking marijuana?

Hi Shoh,

There's nothing "good" about putting any drug into your body. 

You'll have an increased risk of lung cancer, throat cancer, and oral cancer.  Some studies show that it can contain up to 5 times the amount of tar compared to a cigarette.

It lowers the sperm count in men and reduces fertility in women. 

It also reduces your concentration.  Can give you dry mouth.  Affects blood flow to parts of the brain.  It can also affect your memory.

You'll spend a lot of money to accomplish all the above too.