Some forms of arthritis are caused by a reduction in the normal amount of this cartilage tissue. Osteoarthritis, one of the most common forms of arthritis, is caused by normal wear and tear throughout life; this natural breakdown of cartilage tissue can be exacerbated by an infection or injury to the joints.The risk of developing osteoarthritis may be higher if you have a family history of the disease.steoarthritis, one of the most common forms of arthritis, is caused by normal wear and tear throughout life; this natural breakdown of cartilage tissue can be exacerbated by an infection or injury to the joints. The risk of developing osteoarthritis may be higher if you have a family history of the disease.
Wait for the Best Deals. The best deals on summer airline tickets are historically offered approximately 3 1/2 months before a departure date, as airlines attempt to determine their demand for summer travel, reports Rick Seaney at Fare Compare.
2. Buy at the Right Time. Knowing when to buy your flights can be the best tip for saving some serious cash on your next trip. We did a study last year and found that for domestic flights 49 days (about 7 weeks in advance) was, on average, the optimal time to buy plane tickets. But that number can vary quite a bit depending on where and when youâre going.