In a new yeast study, researchers from Tel Aviv University and Columbia University have found that caffeine shortens and alcohol lengthens telomeres – the end points of chromosomal DNA, implicated in aging and cancer. Roasted coffee beans. Image credit: Mark Sweep. Telomeres, made of DNA and proteins, mark the ends of the strands of DNA in our chromosomes. They are essential to ensuring that the DNA strands are repaired and copied correctly....
