If you have ever reached down to pick up a laundry basket or leaned over to tie your shoes and felt that sudden, sharp "twinge" in your spine, you are in good company. Lower back pain is one of the most common reasons people visit a doctor or miss work. For some, it is a dull, nagging ache that builds up over a long day at the office. For others, it is a sudden, debilitating bolt that makes standing up straight feel like an impossible task. While many of us try to wait it out