Pratyahara, or "sense withdrawal" (in short) is the 5th of the 8 limbs of yoga, but not regularly touched upon in yoga classes.  This important study can have a huge effect on physical and mental states and is a tool used regularly in the practice of Ayurveda (a sister science to yoga).  This often overlooked limb of yoga is also fundamental to a successful meditation practice... which I needn't tell you is one of life's great healing tools!

So... what exactly is it and would it be useful for me?

Simply, pratyahara is the withdrawing of our senses from negative environmental influences - food, impressions & associations.  This covers what we nourish our bodies with (food), what we fuel our thoughts with (impressions) and who we spend our time with (associations).

If we can temporarily and effectively withdraw the senses from negative influences, we can tone and strengthen our senses to longer term immunity.

In Ayurveda, we believe that pratyahara has different...