Memory improvement

There are also other ways to improve long-term memory. Here are some ideas.

• Acetylcholine seems to be one of the key neurotransmitters in working of long-term memory. We potentially could increase its levels by:
  • eating more choline (acetylcholine precursor); cheap sources of choline include soybeans and eggs
  • consuming an acetylcholinesterase inhibitor, e.g.: Huperzine A, Bacopa monnieri, Salvia officinalis¹, Melissa officinalis¹²³, others.
• Increased oxygen levels may improve memory formation¹²³; air pressure and humidity also influences oxygen availability — higher the air pressure, the more air (and oxygen) there is in a volume; elevation above sea level also influences the air pressure and thus oxygen availability.¹
• Caloric restriction and physical exercise¹ may improve memory.¹²³
• Anything that increases BDNF levels may help. E.g. curcumin.¹²³⁴
• Mnemontechnics can help.¹
• Closing eyes may help recollect an information.¹²

Memory improvement at Wikipedia may be worth checking too.