Story perspectives

Night-Owls Women Gain More Fat, Metabolic Risks Rise

7/14/2026

Summary

Story summary

Professor Rozanne Kruger of Griffith University reported that women aged 18-45 who are evening chronotypes have higher BMI and more visceral fat than morning types.
Among 287 European and Pacific New Zealand women, calories were similar, but evening types ate more between 8 pm and 3 am and less between 3 am and 9:59 am.
Evening chronotypes showed poorer glucose regulation, less favorable lipid profiles, and higher abdominal fat linked to late-night energy-dense eating.

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Story summary

Professor Rozanne Kruger of Griffith University reported that women aged 18-45 who are evening chronotypes have higher BMI and more visceral fat than morning types.
Among 287 European and Pacific New Zealand women, calories were similar, but evening types ate more between 8 pm and 3 am and less between 3 am and 9:59 am.
Evening chronotypes showed poorer glucose regulation, less favorable lipid profiles, and higher abdominal fat linked to late-night energy-dense eating.