Blood Donations Reduce Heart Disease Risk

In shift workers, blood donations could help cut the risk of heart diseases, says study. The scientists, led by Dr Margit Egg (University of Innsbruck), worked on zebrafish (iDanio rerio/i), a model organism which, like humans, is active during the day. The fish were subjected to alternate short (7 hour) and long (21 hour) days, resembling shift patterns common in industry. It was found that "jetlagged" animals showed higher numbers of aged red blood cells, ...