👉 In physics, a pressure is an amount of force per unit area exerted on a surface. This concept arises from the idea that objects under pressure have higher internal energy compared to objects without pressure. Pressure can be measured in various units such as atmospheres (atm), pounds per square inch (psi), or bar. Pain and discomfort are often experienced when there is an increase in pressure on the body, which can cause physical discomfort and emotional distress. In medical contexts, pressures may refer to