We can change the expression of more than 70% of our genes that have a direct bearing on our health and longevity.

Nature vs. Nuture

In the comments on this website, I’ve seen a lot of discussion questioning how effective adopting a Grain Brain lifestyle can be for brain diseases that are expressed genetically. Certainly, some illnesses are genetically predestined to occur. However, others, though they may be passed along genetically, will remain latent as long as one maintains proper nutrition and sufficient exercise. That’s the message of Grain Brain: we can control what was once our genetic destiny.