Another point worth mentioning: Isaac Newton allegedly had the ability to focus on his work for entire consecutivedays at a time. This is highly unusual. The only non-chemical intervention I’ve ever heard of that can take a normal human mind to that ability is meditation. Though most people aren’t willing to take their meditation practice to the level of intensity that does that, with proper instruction, it may have a more than marginal effect on prolonged concentration.
Another point worth mentioning: Isaac Newton allegedly had the ability to focus on his work for entire consecutive days at a time. This is highly unusual. The only non-chemical intervention I’ve ever heard of that can take a normal human mind to that ability is meditation. Though most people aren’t willing to take their meditation practice to the level of intensity that does that, with proper instruction, it may have a more than marginal effect on prolonged concentration.