- Meditation has no effect on aggression, connectedness, prejudice, or compassion. It may have an effect on empathy. In general the evidence for the pro-social benefits of meditation is weak The limited prosocial effects of meditation: A systematic review and meta-analysis.
- A 1-week experiment on 23 young men found high-protein diets improve reaction time Effect of a high protein meat diet on muscle and cognitive functions.
- A trial is underway to examine the effects of lean red meat and exercise on cognition in older The effects of a protein enriched diet with lean red meat.
Consider any computable set of positive integers X (e.g. "prime numbers", "multiples of 7", "factorial numbers", etc.). There exists a (multivariate) polynomial f(x1, x2, ...) with integer coefficients such that X = image(f). In fact, the sets constructible in either the Turing-sense or the polynomial-sense are exactly the same.