A Tour of Sex Differences in Immune Aging (opens in new tab)

The immune system declines with age, and this causes more than just a progressive failure to adequately defend against infectious pathogens. The immune system is deeply involved in normal tissue function, maintenance, and regeneration. It is also responsible for destroying senescent and potentially cancerous cells throughout the body. Thus immune decline both degrades tissue function and increases the risk of cancer. Researchers tend to bucket aspects of immune aging into two broad categories...