The gendered impact of Covid-19 on health behaviours and mental health: Evidence from the UK.

The purpose of this paper is to assess whether the COVID-19 pandemic affected the health behaviours of men and women differently, and to estimate whether the associations between health behaviours and mental health differed by gender. By employing nationally representative panel data (UKHLS) and a difference-in-differences strategy, we provide evidence that the pandemic adversely affected health behaviours among women more than men in the UK. Compared to men, women were 3.2 percentage points less likely to adopt a healthy lifestyle and reported 0.09 fewer healthy behaviours (corresponding to 7.0 per cent of a standard deviation) during the pandemic. These changes are primarily driven by smaller improvements rather than absolute declines in health behaviours for women compared to men. The changes in health behaviours among women appear to persist over time when lockdown policies were relaxed. Importantly, we find that the pandemic considerably weakened the protective effect of health behaviours on mental health for women but not for men. For women, adopting a healthy lifestyle was strongly correlated with mental health before the pandemic, but this relationship was no longer significant during the pandemic. This loss in significance corresponds to a 0.61-points decline in the GHQ-12 Likert score, equivalent to 10.5 per cent of a standard deviation. However, we observe a partial return of the protective effect of health behaviours on mental health once lockdown measures had eased.