Your skin cells don’t have time to repair themselves

“The evening is a time of rest and repair, when the skin heals itself from daily damage,” says dermatologist Dr Joshua Zeichner. “If you are not sleeping, then your skin will not be able to heal itself and may increase your likelihood of premature ageing.”
Don’t miss these daily habits that might be ageing you prematurely.
Breakouts can – and probably will – pop up

Your levels of cortisol (the stress hormone) naturally drop at night. But when you stay up late and disrupt your sleep cycle, cortisol levels remain high. This means your oil glands are continually stimulated, which can make you more likely to get an acne breakout, explains Dr Zeichner.
Your pores will look bigger

Another side effect of increased oil production brought on by lack of sleep is clogged and dilated pores.
Here are some of the best anti-ageing secrets dermatologists won’t tell you for free.