Is that ok? if i smoke only 3-4 cigarette in a week. i do that normally on weekends. does it really bad? i know it's not good but is it ok?

Not good: No amount of smoking is good, and studies have shown that even "social smoking" is often done around others that smoke, so second hand smoke starts to play a role in your health too. Best to stop the bad habit altogether! Good luck.

Not good for health: Smoking increases risk for cancer, heart disease and lung disease. No amount is safe.