The insomnia and brain fog is no joke,' she wrote. 'And I'm still getting my period! My body is wack!' @jlrydman wrote, 'Same exact #10! Perimenopause did not help when you are trying to learn ...

Others suffer from hot flushes, sleeping difficulties, mood swings and brain fog, which can last for months or years and might change over time. HRT replaces the hormones and is the main treatment ...

Some dense fog is likely in places with the visibility falling to 50 metres at times, the Met Office said. The forecaster warned traffic and travel disruption is possible in some areas due to fog.