If the environment gets cold, we will often shiver in order to __ regulate blood pressure increase body temperature decrease body temperature temperature same as

When the environment gets cold, the human body responds by shivering. Shivering is an involuntary response that generates heat through muscle activity. The primary purpose of shivering is to increase the body's core temperature, not to regulate blood pressure, decrease body temperature, or keep the body temperature the same as the external environment. Therefore, the correct answer is "increase body temperature".