Trench foot
Trench foot can be prevented by keeping the feet clean, warm, and dry. It was also discovered in World War I that a key preventive measure was regular foot inspections; soldiers would be paired and each made responsible for the feet of the other, and they would generally apply whale oil to prevent trench foot. If left to their own devices, soldiers might neglect to take off their own boots and socks to dry their feet each day, but if it were the responsibility of another, this became less likely. Later on in the war, instances of trench foot began to decrease, probably as a result of the introduction of the aforementioned measures; of wooden duckboards to cover the muddy, wet, cold ground of the trenches; and of the increased practice of troop rotation, which kept soldiers from prolonged time at the front.
Natural hoof care
Barefoot trims are marketed to the public as something different from the "pasture" or "field" trim which farriers are trained to provide, taking into consideration hoof health and bony column angles, though each branded type of barefoot trim has its individual differences and there is no standardization or agreement between various barefoot advocacy groups. In contrast to farrier trims, barefoot trims are marketed as an approach to high performance hooves without the need for shoes, or simply as a natural approach to hoof care (depending upon the individual trimming method). However, they are something different, designed by nature itself to maintain a healthy, sound hoof without the use of shoes.