Foods are a major cause of excessive gas. Beans are a well-known culprit, but there are many others. Each food affects everyone differently, but here are some that commonly cause flatulence and burping.
A lumbar puncture (also called a spinal tap) is a procedure to collect and look at the fluid (cerebrospinal fluid, or CSF) surrounding the brain and spinal cord. During a lumbar puncture, a needle is carefully inserted into the spinal canal low in the back (lumbar area). Samples of CSF are collected.
A low-pressure headache occurs in up to a third of people who have had a spinal tap, usually hours to a day or two afterward. In a spinal tap (see How a Spinal Tap Is Done ), doctors insert a needle between two vertebrae in the lower back, and withdraw a sample of cerebrospinal fluid from the spinal canal.