Final answer:
The application of high-frequency or Tesla current typically does not lead to a decreased rate of metabolism; instead, it increases it along with improving blood circulation and sebaceous gland activity.OPTION D.
Step-by-step explanation:
The benefit that is NOT associated with the application of high-frequency or Tesla current is B) decreased rate of metabolism. High-frequency electric currents, such as Tesla current, are used in medicine and physiotherapy with the aim to improve various physiological processes.
This type of current generally increases blood circulation, metabolic rate, and sebaceous gland activity. Some of its benefits include improved blood circulation, increased rate of metabolism, and increased sebaceous glandular activity. Decreasing the metabolic rate is not typically a benefit, but rather could be seen as a detriment, as metabolism is crucial for maintaining the body's energy levels and overall health.