Blood Notion
Scientists May Have Found a Way to Inject Oxygen Into The Bloodstream Intravenously
There are many illnesses and injuries, including COVID-19, where the body struggles to get the amount of oxygen into the lungs necessary for survival. In severe cases, patients are put on a ventilator, but these machines are often scarce and can cause problems of their own, including infection and injury to the lungs.
https://www.sciencealert.com/experimental-device-could-intravenously-deliver-oxygen-to-the-bloodstream

Young mice show signs of old age after receiving blood from an elder mouse
In 2005, a team of researchers at the University of California created conjoined mice which had one old mouse and one young, where both shared the same organs and blood. During the experiment, older mice showed signs of reversal of their aging. In a recent experiment, researchers wanted to know if the reverse was true.
https://interestingengineering.com/science/young-mice-signs-of-old-age-transfusion


Seonglae Cho