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Speaking in the 25 Things You Don’t Know About Me feature for Us Weekly magazine, she revealed: 'I am constantly thinking about food and what I’m going to eat. Sometimes I sing to my food!'
She said: 'I don’t drink or do drugs ... I used to have a frozen yogurt addiction!'; seen recently on Instagram for an appearance on Conan
Heather also spilled her secrets to getting a good night's sleep, revealing that she can get under her covers and sleep for 12 hours a night.
'I adore sleeping. I could easily sleep 12-plus hours a night,' Graham said.