About Guy Brown: Guy Brown, III is a former American football linebacker in the National Football League for the Dallas Cowboys. He played college football at the University of Houston.
Were it not for the melanin in our skin, myoglobin in our muscles and haemoglobin in our blood, we would be the colour of mitochondria. And, if this were so, we would change colour when we exercised or ran out of breath, so that you could tell how en...
