Daniel Caspi

• Senior scientist, AbbVie
• Age: 33
• From: Alameda, California
• Lives in: Evanston

At work, Caspi is close to finding a cure for hepatitis C; at home, he calibrates his body and diet in search of the perfect balance. On dates, he applies a different kind of formula: his pseudo- scientific ice cream flavor test. Just don’t say your favorite is mint chocolate chip—that means you’re a hothead who needs cooling down, he says.

His type: Feminine and smart women with old- fashioned values

Conversation starter: Breaking Bad, a show with “a lot of legit chemistry.” Also, “anything related to food—cooking it, eating it, making it.”