Set of genes. we need to be able to communicate possibilities and probabilities to the public, and that's not always an easy thing to do. even when scientists do agree on genes and their impact, more data is needed for a full picture. genetics can actually be quite meaningful if you combine it with other parameters of the person — their individual dietary inta ke, lifestyle, physical activities, sleep patterns and whatnot. if you just use genetics, it's not going to work. but whilst our dna can't offer every answer, at least dr yiannis later confirmed that i'm free to drink coffee whilst i m...