Final answer:
During feelings of love, the body experiences physiological changes such as an increased heart rate, vasodilation, and a rise in body temperature, with variations between males and females regarding arousal-related changes in heart and breathing rates.
Step-by-step explanation:
When "love is in the air," several physiological changes can occur in the body. A common response is an increased heart rate due to the anticipation of physical exercise or strong emotions initiated by the limbic system. Additionally, the release of epinephrine and norepinephrine by the adrenal glands can amplify this effect. Vasodilation also takes place, which could lead to dilated pupils, allowing more blood flow to certain parts of the body. In contrast to an increased heart rate in males during arousal, females may experience a decrease in breathing rate and heart rate. Moreover, body temperature may rise due to increased blood flow and hormones such as T3 and T4 in the blood.