CELLS ARE SWAPPING THEIR MITOCHONDRIA. WHAT DOES THIS MEAN FOR OUR HEALTH?

Summary from the TLDR newsletter

Mitochondrial transfer - when mitochondria skip from cell to cell on demand - has been observed in a wide variety of cells and in organisms as diverse as yeast, molluscs, and rodents. It isn't clear yet why mitochondria are so mobile, but there are hints that cells donate their mitochondria to neighbors during times of need. The implications for human health are still a mystery. It is unclear whether mitochondrial transfer happens inside the human body.