Immune system aging can be revealed by CT scan

• The thymus, an often-overlooked organ, has a crucial role in the adult immune system.
• As people age, the glandular tissue in the thymus is replaced by fat.
• A study from Linköping University in Sweden links this tissue replacement rate to factors like sex, age, and lifestyle.
• Lifestyle choices, particularly a low fiber intake, correlate with faster fatty degeneration of the thymus.
• The appearance of the thymus can offer insights into the aging of the immune system.