Okay, so I made a list of 230 things which increase intelligence. However, 230 is a bit too much to fit in one day. Maybe they can be spread over multiple days.
However, there are activities I can do every day, so here they are:
1. Drink water after waking up.
A very important one. When you sleep, you get dehydrated. Dehydration reduces intelligence. Thus, you must drink water as soon as you wake up.
2. Drink water before sleep
Drinking water before sleep is an important one too, because it too helps prevent dehydration during sleep.
3. Aim for 5 liters of water per day.
I try to drink 900 milliliters every 2 hours, so thats about 5 liters per day.
4. One meal per day or two meals per day
This is the one which was proven to increase intelligence.
5. Meditation
Meditation was also proven to increase intelligence and it can be practiced every day.
6. Deep slow breathing
This is usually combined with meditation. Those who breathe deep and slow have shown increased mental performance.
7. Sounds for intelligence
This one is consisted of 5 parts: Isochronic, binaural, noise, nature's sounds (birds, river, waves) and classical music.
Isochronic and binaural sounds make your brain run on frequencies which are best for memory and reasoning. These are usually 15 to 40 hz frequencies.
White noise sound was also shown to increase focus and performance. There is also brown, pink and grey noise.
Nature's sounds of birds and waves was scientifically proven to increase intelligence.
Classical music is usually enjoyed by smart people, and was even proven to increase intelligence in people who listen to it from early age.
8. Memorization
Memorizing songs was also proven to increase intelligence, so I have memorized about 20 songs and few prayers to improve my brain.
9. Games
Games were scientifically proven to increase intelligence, but some games are better than others. Games like chess, mahjong, memory games, block games, puzzle games, connect the dots, strategy games., word games...ect. have all been proven to work.
Games which test reactions and which demand quick reactions, I play those too, but in lower amount.
10. Debating
Debating, exposing to opposite views and arguing for opposite views increases intelligence too, but I think everyone here knows that.
11. Learning a language
I use spaced repetition (That is when you repeat, read to check if you were right, then repeat again. Then make a somewhat long pause of few hours before repeating, reading and repeating again.).
Spaced repetition helps me learn Japanese while still having time for other things. I am just learning how to speak it.
Learning a new language was proven to increase intelligence.
12. Writing down everything important
This improves memory, thus also improves intelligence.
13. Reading smart things
This seems simple enough. Reading smart things will make you smarter. Thus, its much better to read smart books and research than to read some nonsense. Reading statistics, probabilities, data, or just interesting facts is great for brain. There are apps which give daily life hacks, some very useful for intelligence.
14. Test all your skills constantly
You are supposed to test yourself to improve, as testing yourself improves your brain. Take tests over and over until success.
15. If you fail, it just means you need to change tactics
This approach is one of my most important discoveries. It basically means that if you have a goal and if you fail to achieve it, you just need to try a different way. Change ways and keep changing ways until one way succeeds.
16. Playing a musical instrument
This one was also proven to increase intelligence, so I might need to include this one too very soon.
17. Make lists
I am a person who likes making lists. I have list of general facts and arguments, list of books, list of songs, list of movies, list of activities...ect.
Making lists improves memory by reminding you of important things in your life.
18. Drawing, singing and creative work
Singing was proven to improve mood, which helps person keep making progress in intellectual area.
Drawing(coloring too) improves creativity, which is important for creative part of intelligence.
19. Light therapy app
I have very much formed a habbit to use Lumenate app every night before sleep.
20. Book summaries
This one is very important. I have no time to read whole books every day, but book summary apps enable me to get key points from books much faster. AI summary also helps.
21. Dictionary of logical connectives
This one is very important. Logical connectives are what forms logic.
22. Progressive muscle relaxation and cold
Progressive muscle relaxation is a great alternative to exercise which also has mental health benefits.
Being cold or taking a cold shower improves circulation, which improves brain indirectly.
Now, these 22 are what I do every day. I want to increase my IQ to at least 150 because I dont want to be a 120 IQ retard anymore.