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  3. Six things you do every day that thin your hair (and how to avoid them)

Six things you do every day that thin your hair (and how to avoid them)

Published on 21 August 2018 - Last updated on 19 December 2025 by Beth Ryan

I seem to spend my life gathering lengthy ginger hairs around the household. In the hairbrush, attached to clothes, that little ball scrunched up on the shower wall… But, that’s normal. We lose around 120 strands a day, so don’t be alarmed if you’re the same. If you find that your locks aren’t growing back after shedding, that could be a reaction to something (or many, many things) happening in the body. Get to know the cause to protect those locks of yours. Here are the six most common culprits (and what to do about it).

By Rachel Spedding

  • 1 You're using your straighteners too much

    Heat is never good news for our hair (whether that’s from the sun or your trusty GHDs). Styling tools – hair dryer included – can dry out your strands and cause them to break. Heat weakens the hair shaft, and can actually burn locks straight off. Try lowering the temperature gage so that there’s less stress on your strands.

  • 2 You need a break from hair dye

    As well as heat from your favourite curling wand, dyeing your hair can break it off too. Chemical damage can cause your locks to lose their elasticity (‘over processing’ is the proper word for it). Try taking a break from hair dyeing (for around a month or so), and investing in a deep conditioning treatment instead – FYI, root regrowth looks cool, embrace it. ​

  • 3 You're not brushing enough

    Plot twist – underbrushing is a thing. Your hair ‘lives’ for around seven years, but regular brushing encourages the fall-out cycle (those 120 strands we mentioned earlier). That’s because it stimulates the scalp, allowing follicles to perform their old-new routine. Be gentle though, and use a wide-tooth comb if possible. Detangling spray might come in handy too…

  • 4 It could be the weather

    Yes, really. A change in season can affect the hydration of your hair – as well as the activities that come with it. Sunshine, for example, can dry out your strands, while swimming pools may have an affect on that freshly-dyed colour. Get a trim before the summer season starts (and throughout the year in fact), to rid damaged hairs and keep your locks healthier in the long-run.

  • 5 Or your baby

    Around 3-4 months after having a baby, you may experience some shedding. That’s because oestrogen levels are higher while you’re pregnant (hence the thicker locks you’ll be sporting for nine months), then drops once you’ve given birth. It’s pretty common, and your hair will most likely grow back to its usual thickness pretty quickly. ​

  • 6 But it's also in the genes

    Yep, you could actually be genetically prone to thinning hair. The hormone-induced sensitivity causes your follicles to shrink, meaning a gradual reduction in hair volume. There are ways to work with finer hair to keep it looking tip-top – give it a read.

    With Treatwell, you can book beauty online at all your favourite salons – simple, hassle-free, and you can do it on the go. Discover amazing salons in your area.

FAQs

How much hair do you normally lose each day?

Most people naturally lose around 120 strands of hair every day. This is a standard part of the hair growth cycle, so finding hairs around your home or in your brush is perfectly normal.

What causes hair to break or fall out more than usual?

Excessive heat styling, frequent hair dyeing, lack of brushing, seasonal changes, hormonal shifts after having a baby, and genetic predisposition can contribute to hair loss or breakage. Each of these factors can stress your strands or scalp, leading to increased shedding or thinner hair.

How can using straighteners and hair dryers affect your hair?

Frequent use of straighteners and hair dryers can dry out your strands and weaken the hair shaft, leading to breakage. High heat may even burn hairs straight off, so lowering the temperature helps reduce stress on your locks.

Why might your hair shed more after having a baby?

You may notice increased shedding about 3-4 months after giving birth due to dropping oestrogen levels. During pregnancy, higher oestrogen results in thicker hair, but after delivery this level falls, triggering temporary hair loss that usually regrows naturally.

What can you do to protect your hair from seasonal damage?

Getting a trim before summer and regularly throughout the year helps maintain healthier hair by removing damaged ends. Sun exposure and swimming pools can dehydrate or affect coloured hair, so preventative trims keep your locks in better condition.

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