After the scan, the participants will be asked to rate the pleasantness of the logos, and asked to rate the pleasantness of the two milkshakes. After the taste test, the participants will be offered ad libitum intake of both the hyper-palatable and sub-palatable milkshakes denoted by their logos. The participants will be left alone in the room with the two milkshakes while they fill out a demographic and brief medical history questionnaire (to assess menstrual cycle, breastfeeding, sleep quality, and handedness) this will last about 30 minutes.