After An Age, 75% Of Our Health Is Choice

Science tells us that by the time we are about 60 years old, 75% of our health outcomes are determined by our choices. That’s genetic self-engineering: Each healthy act switches on youth-promoting genes and switches off genes that cause us to age. This process is the result of millions of years of evolution. Good choices (and the proteins that are developed because of them) beget more good proteins, and the activation of bad genes begets more bad and destructive genes being turned on.

For example, after implementing changes to their physical activity, stress management, and diet regimens, men were able to turn off genes associated with prostate cancer growth and turn on a gene that produced a protein that causes cancer cells to self-destruct. T...