What is spondylolisthesis and how is it different from spondylitis?

Walking on two legs has evolutionary benefits but also impacts the spine, causing conditions like spondylitis and spondylolisthesis. Spondylitis is inflammation due to factors like age or infection. Spondylolisthesis involves vertebrae slippage, sometimes necessitating surgery. Treatments focus on medication, lifestyle changes, and surgery for severe cases, aiming for pain-free mobility.