It's something you do every day.

But it turns out that a lot of us have been brushing our hair the wrong way, according to a new study. Yes, that's right: your 'do can be damaged if you're brushing too hard, or if you're trying to pull on knots — not to mention using the wrong brush. A survey recently conducted by Tangle Teezer looked at the hair habits of 2,000 women. And while around 40 per cent recognised that some of what they do could be bad for their hair — and nearly one in four were worried about the damage their were doing to their hair. According to The Mirror,  one in five women reckon it is okay to brush their hair 'roughly' so that they can get through any tangles and knots — and half of those surveyed brush their from their scalp downwards, something that's considered to be a 'no-go'. Three out of four women also said that they used the same brush for all their hair car, ranging from detangling to blow drying their hair -- something that we definitely know we've been guilty of. "It's worrying to see just how many women are brushing their hair incorrectly and causing unnecessary damage to their hair," Tangle Teezer founder Shaun Pulfrey said. "No matter what the hair texture, it's important to use an intelligent hairbrush which is gentle. It's also concerning that women are using one brush for all tasks, a good way to look at this is you wouldn't use a foundation brush to apply blusher, so why use a detangling brush to blow dry hair? No matter how tempting it is to pull or cut knots, it's always best to use a detangling hairbrush."