Anyone with advice on avoicing it if family history of rheumatoid arthritis ?

Maybe possible: We know that there are risk factors for developing rheumatoid arthritis, but no clear avoidance mechanisms. Smoking can be a risk factor. Many are not aware but if you have genetic risks identified by laboratory tests that identify presence of the shared epitope, dr4, and you smoke you have a risk of developing RA and is worse if you have both. If you have RA and smoke your RA is worse.

No control: Unfortunately with genetically inherited conditions, there is no way to prevent yourself from being affected if you have the gene defect. However, those who do best are those who have overall good health habits. That means eating right, no smoking, and maintaining an active lifestyle. You should also seek medical advice at the first sign of symptoms.

Don't smoke: The only thing you can control to lower your risk of RA is to avoid smoking.

No smoking: The only proven action you can take to lower your chance of developing rheumatoid arthritis is to not smoke. If you do smoke now, smoking cessation may still help plus there are so many other benefits of smoking cessation.