Women look oldest at 3.30pm on a Wednesday
Women look oldest at 3.30pm on a Wednesday, as work stress is at a peak and the effects of a heavy weekend has kicked in, according to research.
A survey by tanning brand St Tropez found that 12% of women find Wednesday the most stressful and two thirds said they experience a slump in energy levels mid-afternoon on a Wednesday.
This slump leads to a quarter of them reaching for a sugary snack to boost energy levels.
An added cause is that more than one in ten women admits to abandoning their skincare regimes on a Wednesday.
However, the next day, Thursday, is the day they are most likely to have sex, according to the study.
Sex gives them a youthful rosy glow, which could explain why women feel so happy on a Friday - the day named as the happiest day by 60% of women.
St Tropez skin expert Nichola Joss said that it can take up to 72 hours for the visible effects of alcohol to show, so the effects of drinking on the weekend may not present themselves until Wednesday afternoon.
The shock of going back to work leaves 37 per cent of women sleepless on Monday night - another reason for the mid-week slump.
The effects of a lack of sleep can take 48 hours to show on the face, so if many women sleep badly on Monday they will look their oldest on Wednesday, Joss said.
"It's essential to cleanse the face of build up from everyday pollution. Letting these build up clogs the skin making it duller and drier, and superficially older," Joss added.