Symptoms of arthritis usually develop over time, but may also occur suddenly. Arthritis is most common in adults over the age of 65, but it can also develop in children, adolescents and young adults. Arthritis is more common in women than men and overweight people. Within your plan you must include specific exercises for exercising your abs, this not merely include resistance exercises but in addition aerobic workouts, its also wise to include which foods to eat, what number of meals you'll have for the entire day and just how much rest your getting. By targeting these goals you will be much more focused and determined to build six pack abs. So get going and write up an idea! Pediatric rheumatologists are doctors who specialize in providing comprehensive care for children (and their families) who have rheumatic diseases, especially arthritis.