I need to know the best interventions for improving cognitive performance.

I'll award based on:

1. How promising they seem (to me) to be

2. How novel they are (to me)

3. How fleshed out the comment is.

   1. Eg " Meditate. " is bad, but a link to an article describing a specific type of meditation with specific effects might be good (even though meditation itself is not very novel to me either).

Things I've already heard of:

• Meditation

• Supplements

  • Creatine

  • Iodine

  • DHA

  • Choline

• Nootropics

  • Stimulants

    • Caffeine

    • Nicotine

    • Modafinil

    • Adderall

  • Microdosing psychedelics

  • PRL8-53

• Exercise

  • Intense cardio

  • Just generally increasing cardiovascular health

• Active Recall

• Spaced repetition learning

• Brain training stuff

  • Dual N-back

  • Learning stuff like learning languages learning an instrument

  • Learning cognitively demanding stuff

    • Doing math

    • Doing puzzles

    • Programming

• Learning about psychology memes

  • CFAR type stuff

  • Rationalism type stuff and learning about cognitive biases

Interpret "cognitive performance" very loosely. Anything that will help accomplishing general intellectual tasks more effectively. Whether that be through literally raising g/IQ, or through improving focus, or something else. As long as it is applicable to a broad array of intellectual tasks, and isn't just accumulating domain skills, it will count.