填空题 Loneliness is a psychological ______ designed to motivate you to seek out social interactions, but it’s highly ______. If you feel lonely, then you are lonely. And it doesn’t necessarily mean you’re a loner or have no friends. It just means that the social interactions that are necessary to you are not being ______. In one painful study, scientists found that being lonely made cold symptoms ______. Hundreds of healthy people completed a loneliness scale test and then were given nasal drops containing the common cold virus. Those who reported being lonelier ______ to the test also reported more significant cold symptoms. Have you ever noticed that food tastes better when you are hungry? Scientists have actually seen the same ______ with loneliness. When hooked up to fMRI machines (functional magnetic resonance imaging) and shown either an image of a loved one or stranger, those who tested higher on the U.C.L.A. Loneliness Scale showed a bigger ______ in the reward system of the brain when shown a picture of a loved one, while those who were not very lonely had a similar response between the loved one and stranger. This helps us see that it’s not that lonely individuals lack close relationships, but rather, that they ______ for greater social interaction. Chronic loneliness can also change your body on a cellular level. As a result, we see that poor social relationships show a 29% increase in coronary heart disease and 30% increase of stroke. Overall, people with strong social relationship have a 50% increased likelihood of ______ overall.