The organs you can live without form a short and real list: the appendix, the gallbladder, the spleen, one of the two kidneys, one lung, and portions of the intestine. Each can be removed and life continues, which is why these operations are routine. None of them, though, is spare.
Preventive chiropractic describes ongoing care given to a spine that is not currently symptomatic, and the evidence behind it divides into two parts. There is reasonable support for the idea that staying mobile and strong reduces the recurrence of back problems. There is much weaker support for routine adjustment of a symptom-free spine preventing anything.
How painkillers work is often misunderstood: they do not travel to the painful area. An oral painkiller is absorbed through the gut, carried in the bloodstream, and acts wherever its target receptors or enzymes happen to be, which is throughout the body. That is why a tablet taken for the back also affects the stomach lining.
Is chiropractic treatment painful is among the most common questions asked before a first visit, and for most techniques the answer is no. What is usually felt is pressure, a stretch, and sometimes a click. The gentler methods avoid twisting the neck and any sudden jerking movement altogether.
A vitamin is a compound the body needs in small amounts and mostly cannot manufacture for itself, which is why vitamins come from food. A genuine deficiency has recognizable clinical features and is confirmed on a blood test rather than inferred from a list of general symptoms.
A mattress for back pain is often assumed to need maximum firmness, and the research does not support that. Trials comparing firmness levels have generally favored a medium-firm surface over a very firm one for people with ongoing low back pain. Position is also free to change.
Chiropractic or physiotherapy is a choice that matters less than it appears, because the two overlap substantially. Chiropractic emphasizes joint movement and how spinal segments share load; physiotherapy emphasizes strength, control and graded loading. Most spine and joint problems need both, and the useful question is which of them a particular problem needs first.
