Final answer:
The paragraph supports the author's position by showing how social support positively impacts one's stress response, both psychologically and physiologically.
Step-by-step explanation:
The paragraph supports the author's position by providing additional evidence about the positive effects that social support has on an individual's ability to cope with stress. It details how the physical presence of a loved one, or even just the contemplation of supportive individuals, can lead to lower blood pressure during stressful tasks and activation of the ventromedial prefrontal cortex, which is associated with overcoming fear. Moreover, it explains that there are both psychological and physiological benefits to social support, which can manifest in improved health behaviors and reduced physiological responses to stress.