Brushing wet hair can cause significant damage to the hair shaft, according to new research and hair care professionals. Dr. Mehmet Erdogan, a hair transplant surgeon, explained that the moisture in wet hair changes its response to stress, making it more vulnerable to breakage when brushed. This can lead to increased breakage and thinning over time. To prevent damage, experts suggest using wide-tooth combs and gentle brushing techniques. Although brushing is still necessary, it should be done carefully to avoid harming the hair. Factors like stress, diet, hormones, and overprocessing can also contribute to hair damage. Those with fine or chemically treated hair are particularly susceptible to damage from brushing wet hair. Professionals recommend using heat protectant, lowering heat tool temperatures, and avoiding overlapping bleach. Regular trims and proper scalp care are also essential for maintaining healthy hair.