though the night was 80 degrees fahrenheit, the model had diet shivers because she had been fasting for two days in preparation for a photo-shoot
shivers caused by a woman's coldness due to her dieting (restricting her calorie intake to lose weight and/or become thinner)
"though the night was 80 degrees fahrenheit, the model had diet shivers because she had been fasting for two days in preparation for a photo-shoot" What is the definition of "diet shivers"?