Tires â Retreading is less expensive than new tires and is a large portion of this cost. Although mere pennies per mile, an average tire can cost over $250 and annual tire expenses can exceed $4,000 ($0.03 per mile), enough to purchase 16 new tires annually, but still not enough to replace every tire of an 18-wheeler.
To Correct Forward Head Posture, the muscles which need to be stretched comprise of: 1  Upper cervical (capital) extensors: Semispinalis capitis, splenius capitis, longissimus capitis and suboccipital muscles. 2  Lower cervical flexors. Sternocleidomastoid muscle, medial and anterior scalene muscles.
According to researchers every inch the head moves forward of the shoulders, weight is elevated by 10 pounds. As a result, a 12 pound head held 3 inches forward, forces the cervical extensors (semispinalis, splenii, longissimus, upper traps, etc.) to isometrically hold up 42 pounds against the unrelenting force of gravity. And we are amazed that so many clients present with degenerative disc disease, head pain and TMJ.