Lets start with fun things.
A) How to get high on your own breath?
I was surprised that this was possible, but it is.
To do this, you take 50 deep breaths.
Then you exhale completely and dont inhale for as long as you can. Then inhale once you feel the strong urge to. Then hold breath for 15 seconds. Repeat this 3 to 4 times.
https://www.projectxfactor.com/post/get-high-on-your-own-supply-with-the-wim-hof-breathing-technique
The other method is to start breathing deep very slowly, then faster and faster until you reach full speed.
B) Exhale longer than inhale
I was actually surprised to find out that when you take full breaths, you need to inhale fast and exhale slow.
It seems to be good when you are working. It gives you more energy.
Also, when you do some manual labor, you can greatly increase endurance by making short pauses from work when you inhale.
How it is done: Exhale(work), Inhale(short pause from work).
It also works with relaxation. You close eyes when inhale, and open them when exhale.
The basic time is: 2, 6, or maybe 2, 4,
So you inhale for 2 seconds and then exhale for 6 seconds.
For meditation it is also good to make pauses.
Inhale - Pause - Exhale - Pause
So for example, there is:
3, 2, 5, 0
You inhale for 3 seconds, pause for 2, then exhale for 5, and inhale again for 3...ect.
I will post all I have found and list what they are for.
C) Binaural sounds and isochronic
There is plenty of free apps for this. You just need headphones for binaural sounds.
I have read some reviews that say how binaural sounds can cause headaches.
I listened binaural for over 5 hours a day. Still no headaches.
Binaural sounds can help you feel better, or sleep better.
I have listened to lots of sounds during the day, including ancient Chinese music.
D) Now, all this helps with meditation. You can meditate longer if you feel better.
As far as I have seen, the basics of meditation is to sit down, close your eyes and keep changing your focus on breath, body parts, gravity, sounds...ect.
Proper deep breathing is important. The longer you breathe deeply, the better you will feel.