Some arthritis, such as rheumatoid arthritis and lupus, affects multiple organs and causes a wide range of symptoms. Get your copy of Ruth's ebook The Powerful Secrets of Seduction. A cortisol blood test is carried out to discover the cortisol hormone level in the blood. Cortisol assists one's body in metabolic process and stress management. The levels of cortisol inside the blood may vary as a consequence of several factors like stress, infection, injury and strenuous activities. The levels of cortisol usually vary throughout the length of the afternoon. In the morning, it can be generally increased, at night and during sleep, its level is often low. Its level, however, may continue with the person's sleeping habits. Those who sleep within the daytime and therefore are awake during the night, might have reversed cortisol level patterns also. Giving or receiving a light massage from your partner can also act as a big libido booster. A light body massage can increase blood flow and reduce stress too. Moreover, enjoying greater intimacy with your partner can increase your desire to have sex. Extracting and analyzing the level of inflammation in your blood and synovial fluid can help your doctor determine what kind of arthritis you have. Blood tests that examine specific types of antibodies such as anti-CCP (anti-cyclic citrullinated peptide), RF (rheumatoid factor), and ANA (antinuclear antibodies) are also common diagnostic tests. In case of the entire knee replacement surgery, the full knee joint is replaced with the prosthetic joint, but the partial knee replacement surgical treatment is only worried about replacing the damaged cartilage inside the knee affected of arthritis in lieu of removing and replacing every one of the cartilages. Several factors exist that make the inmates prefer partial knee replacement over total knee replacement surgery. The basic difference, however, is within relation to its incision and recovery. In case of the entire knee replacement, the incision that is made is pretty big, whereas in case of the partial one, the incision is small and the time taken for recovery is additionally less when compared to the former.