I think sex brain is really more terrible than love brain, because it will not only affect the cognition and behavior of individuals in love relationships, but also have a negative impact on all relationships between individuals and others. The thinking mode of sex-related brain may lead to personal social and professional problems and have a great impact on the quality of life. However, it should be noted that sex brain and loving brain are both a mode of thinking, and the key lies in how individuals understand and adjust their mentality in order to maintain healthy interpersonal relationships and living conditions. Sex-related brain and love brain are both a kind of thinking mode, and they have similarities in dealing with interpersonal relationships, but there are also some differences.

The sex-related brain is a mode of thinking. Its main feature is that love is regarded as the most important social relationship, and it is willing to give up social ties such as kinship (between parents and family) and friendship (between friends and girlfriends), and at the same time misinterpret any relationship as sexual relationship. The core idea of sex-related brain is to put sexual relationship above other relationships, and think that sexual relationship is the most important and basic interpersonal relationship.

Loving the brain is a common psychological phenomenon, which is mainly manifested in over-idealizing each other, ignoring each other's shortcomings and having unrealistic expectations for love relationships. Loving the brain may lead individuals to blindly engage in emotional relationships, ignoring other things in life, and may even affect their normal life and work because of emotional problems.

The difference between sex brain and loving brain is mainly manifested in the following aspects:

1. The focus of attention is different: the love brain focuses on the love relationship, while the sex brain focuses on the sexual relationship. Sex brain regards sexual relationship as the core of interpersonal relationship, while love brain regards love relationship as an important part of life.

2. Different scope of influence: the love brain mainly affects the cognition and behavior of individuals in love relationships, while the sexual brain may affect all the relationships between individuals and others. The thinking mode of sex-related brain may lead to problems in other relationships such as family ties and friendship.

3. Different degrees of harm: loving the brain may lead to problems in personal emotional life, such as breaking up and falling in love, but generally it will not have much impact on other areas of life. However, the sex-related brain may lead to social and professional problems and have a great impact on the quality of life.