Which type of reaction is a direct effect of massage on the skin?

The correct choice highlights how massage influences the body through various physiological actions. Physiological action refers to the effects that massage has on the body's functions, such as increasing blood circulation, enhancing lymphatic drainage, stimulating the nervous system, and promoting relaxation among other beneficial responses. These actions directly affect how the skin responds to immediate stimuli, leading to improved skin tone and texture, increased nutrient delivery to skin cells, and overall better skin health.

In contrast, while mechanical reactions involve physical manipulation of the tissue during massage, they are not categorized as reactions that result from the body's internal processes. Chemical reactions pertain to changes at a molecular level, such as alterations to skin components due to applied products, which is not the direct focus of massage as a technique. Psychological reactions address the emotional and mental states that can be influenced by massage but are more of a secondary effect rather than a direct outcome of the physiological changes occurring in the body.