Key points from article :
Swapping an older mouse’s ovaries for young ones reversed the effects of ageing on the immune system and metabolism.
Naive T-cells increased 67 % compared to 80 % fall in untreated mice.
Transplanted mice live about 40 per cent longer and have healthier looking hearts.
Unclear what causes the improvement.
Mice experiment equivalent of transplanting 20-something ovaries into human female in her 50s.
