If you know me, you know that I am a big fan of the psoas. Being the only muscle(s) to connect your trunk to your legs, it has an incredibly important role to play in the architecture of your body. A supple, responsive psoas helps to keep your body happy and your nervous system calm, cool and collected. (For more information on your psoas, click here and here)
Many people have chronic psoas tension... so here is a short video tutorial of two very effective lunges that I highly recommend you do daily. Especially if you sit a lot, or run, or bike, or basically are a human in our western world. Enjoy!