" A Spanish study illustrates this perfectly. Researchers at the Cancer Epigenetics Laboratory at the Spanish National Cancer Center in Madrid studied 40 pairs of identical twins, ranging in age from 3 to 74. They found that younger twins who had similar lifestyles and spent more years together had similar epigenetic patterns, while older twins, in particular those with dissimilar lifestyles who spent fewer years together, had very different epigenetic patterns.13 "

― Joe Dispenza , You Are the Placebo: Making Your Mind Matter