| Despite years of research, scientists still aren't sure | | | | there is more than one gene at play here. When |
| about rheumatoid arthritis causes. RA is an | | | | combined with environmental factors, the disease may |
| auto-immune disease in which the body turns on itself | | | | or may not occur in those carrying the genetic |
| and attacks its own tissue, causing injury to the joints | | | | markers. |
| and sometimes the organs. It occurs mostly in women | | | | Hormones |
| over 35, but it has been known to afflict both men and | | | | Hormones are determined to be one of arthritis |
| women of every age, from toddlers to the elderly. | | | | causes. RA occurs mostly in women. Pregnancy |
| It seemingly occurs out of nowhere, but researchers | | | | seems to temporarily alleviate the symptoms of RA, |
| are starting to find common links and contributing | | | | while breastfeeding and contraceptive use, such as |
| factors. Ultimately, RA seems to be caused by a | | | | the birth control pill, can aggravate it. Pregnancy seems |
| combination of factors that differ from person to | | | | to alter immune system molecules, which explains |
| person. | | | | changes in the severity of the disease during that time. |
| What Causes Rheumatoid Arthritis? | | | | Environmental Factors |
| Genetics | | | | Those who carry genes that make them susceptible |
| One of the rheumatoid arthritis causes is our genes. | | | | to RA may find their "trigger" in various environmental |
| We still don't know exactly what role genetics play, but | | | | factors. Many scientists believe that one of the many |
| we do know that our genes determine who gets the | | | | causes of RA is a bacterial or viral infection. Other |
| disease and its severity. Depending on the | | | | possible rheumatoid arthritis causes include smoking |
| circumstances, some people carrying the genes may | | | | tobacco for many years and a consuming diet high in |
| never develop RA, while others will. Scientists believe | | | | sugar, saturated fats, and processed foods. |