So it is imperative that we make an honest attempt to breathe properly. But first of course we have to make sure that we are breathing in unpolluted air. The time best for breathing exercises is early in the morning when the air is comparatively unpolluted. 

Now what you have to do is this. Again, sit comfortably so that there is no strain to any part of your body. It is not imperative that you close your eyes, but I have always noticed that the exercise works better when the eyes are closed.

When you are ready, what you have to do is to breathe in deeply and slowly, and feel the fresh air filling up your lungs until it just can’t take any more. Conjure up images of the air encircling throughout your body and reaching every cell, literally bathing it with oxygen. Of course it doesn’t happen that way but the image helps a lot. Then hold your breath for a few seconds and then very slowly exhale letting out all that foul air.

Again conjure up an image of all the toxins being released from your body. Every cell has become free of the burden it was carrying. Now pause for a second or two and again breathe in deeply, slowly letting your lungs fill up with all that good, clean, rejuvenating air. Repeat this exercise at least ten times and take your time for it taking care not to rush through. 

When you have done that part of the exercise it is time for the second part. Again sit with your eyes closed, but this time, keep one nostril closed with the help of your index finger. It is best to close the right nostril first and that too with your right index finger. Now breathe in deeply and slowly through your left nostril keeping the right nostril closed. When you have held air for a second or two, release your right nostril and breathe out through it. 

While you are breathing out conjure up an image of all the toxins being released form your head and the brain especially. And as you breathe in conjure up images of the clean air circulating though out your brain freeing it of all the worries and trouble and lightening it.

Repeat this exercise with the other nostril closed and in this way alternate between the nostrils at least ten times. The entire breathing exercise need not take more than ten minutes.Use a pillow that is not too thick to rest your head. If the pillow that you are using is too thick, you will be straining you neck muscles when you are asleep. If the neck muscles are taught for too long, they will become stiff and this often precipitates as a headache.

Find out if you have any allergies. Allergies can cause headaches. Some of us are allergic to specific substances and these substances can trigger off a headache. It may be certain odors or it might be a certain flavors. Each time you get a headache just try and find out what triggered it.

 Dry your head well after a shower. It is best to use a towel for this. The problem with water is that it can seep in through the scalp of your head and if you leave your head damp, the moisture can seep in result in a headache. Do not blow dry your hair as far as possible. Dryers are not a very good idea. The heat from the dryer is actually bad for your head. Go easy on driers and if at all you must use a dryer, use it only if you have long hair. Never use it to blow dry the short hair on your head. If you must blow dry your hair, keep the blow drier well away from your head. Not only is the heat bad for your head, but the drone of the drier can also induce a headache.