The terms pressure, temperature and pain all relate to the skin as a sensory organ that can perceive different types of stimuli. The skin contains specialized nerve cells that respond to mechanical, chemical or thermal stimuli and transmit signals to the brain. Pressure refers to the perception of mechanical stimuli, such as touch, pressure or stretching of the skin1. Temperature refers to the perception of thermal stimuli, such as heat or cold. The skin has two types of thermoreceptors: heat and cold receptors. Heat receptors are activated when the skin temperature rises above 42°C and cause a painful sensation of burning2. Cold receptors are activated when the skin temperature drops below 35°C and cause a painful feeling of frostbite2. Pain refers to the perception of noxious or unpleasant stimuli that can cause tissue damage. The skin has nociceptors that respond to extreme mechanical, chemical or thermal stimuli and send a signal of pain to the brain1. Pain is a protective mechanism that motivates us to move away from the noxious stimulus. However, some factors can increase or decrease sensitivity to pain, such as inflammation, medication or emotions1

• Pressure can also refer to the psychological stress a person experiences due to high expectations, deadlines or responsibilities. Too much pressure can lead to anxiety, depression or burnout.

• Temperature can also refer to someone's emotional state. For example, a person may feel warm when happy or in love, or cold when angry or distant.

• Pain can also refer to the suffering someone experiences through loss, trauma or loneliness. Psychological pain can be just as intense and real as physical pain and can affect a person's well-being and functioning.