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Health

13th Mar 2025

Pharmacist explains how poor sleep can lead to hair loss

Kat O'Connor

Hair loss is an issue that affects many of us, but finding out what is causing it can be incredibly difficult.

There are so many factors to consider, but one you may not have considered is sleep.

A pharmacist has recently revealed that poor sleep may be the reason you’re suffering from hair loss.

While many focus on hair loss treatments, sleep quality may be the overlooked factor in maintaining strong and healthy hair.

During deep sleep phases, the body releases growth hormones that repair and regenerate cells, including those in hair follicles.

This nighttime restoration process is crucial for maintaining hair strength, shine, and growth according to George Sandhu, Deputy Pharmacy Superintendent at Well Pharmacy Online Doctor. 

“During sleep, your body does most of its repair work, and that includes your hair,” explains the expert. “Consistently poor sleep can lead to increased stress hormones like cortisol, which can trigger hair thinning and even hair loss over time.” 

George Sandhu explained that increased hair thinning may be linked to sleep deprivation.

“Studies show that people who regularly get less than six hours of sleep are 30% more likely to report issues with hair thinning.

“This is because inadequate sleep disrupts the hair growth cycle, pushing more follicles into the ‘shedding’ phase prematurely. Even short-term sleep problems can manifest as increased hair fall.”

What can we do to prevent hair loss caused by poor sleep?

For those looking to improve both sleep and hair health, George recommends: 

  1. Maintaining a consistent sleep schedule, even on weekends 
  2. Using a silk pillowcase to reduce friction and breakage 
  3. Avoiding tight hairstyles such as high ponytails and buns before bed  
  4. Using soft scrunchies rather than elasticated hair ties 
  5. Avoiding going to bed with wet hair, as it’s much more fragile 
  6. Keeping the bedroom cool, as overheating can affect both sleep quality and scalp health 

Getting proper rest allows your body to repair and regenerate hair follicles naturally.

However, if you’re worried about ongoing hair thinning or loss, it’s always best to consult with your GP, who can rule out underlying health conditions and recommend appropriate treatments tailored to your specific situation. 

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