Shoes are an indispensable part of the look. However, according to evolutionary biologists and doctors, humans would be healthier if they walked barefoot. Shoes, especially ill-fitting ones, can have a negative effect on our posture and thus on the spine. But since, except at sea, we cannot afford to jump around the world without shoes, we can at least adjust our shoes to be optimal for our health. See below which are the best and worst shoes for your health according to the research.