When we age our whole body gradually deteriorates. This includes our brains, where our personality, memories and personal values reside. It is therefore understandable that dementia and memory loss are some of the most devastating hallmarks of ageing, for the elderly, their families, and the healthcare system. This is why researchers want to find ways to rejuvenate the brain and therefore maintain the young mind and cognition in old age.
Throughout our life, immune cells that circulate in the blood help maintain our bodies, yet the brain, structurally secluded from the circulation by an impermeable blood-brain barrier, was for years considered to be an organ which ideally operates autonomously….