Thymus Essentials. 1  The thymus gland, located behind your sternum and between your lungs, is only active until puberty. 2  After puberty, the thymus starts to slowly shrink and become replaced by fat. 3  Thymosin is the hormone of the thymus, and it stimulates the development of disease-fighting T cells.
Southwest Rapid Rewards. #3 in Best Airline Rewards Programs. The Southwest Rapid Rewards program is most beneficial for budget-minded travelers based in the United States who frequently fly to major cities around the U.S., Mexico and the Caribbean. Southwest offers more than 3,900 flights a day to more than 90 destinations.
The change from credits to points in the All-New Rapid Rewards program will impact Southwest Airlines Rapid Rewards Credit Cardmembers. Chase will send separate communication detailing specific changes to the Rapid Rewards Credit Card during the January/February transition period. Rest assured, the credits Cardmembers earn during the program transition are safe and can be combined with points after transition in order to receive an Award.