If you’ve noticed more hair strands on your pillow, in the shower, or stuck in your brush as the seasons change, you're not imagining it. Seasonal hair fall is real — and surprisingly common. During seasonal changes, especially in autumn and spring, your body reacts to shifts in temperature and daylight. These changes affect your hair growth cycle, causing more hair follicles to enter the resting phase (also known as the telogen phase). That leads to increased seasonal hair shedding, even if you're following a normal hair care routine. Most people lose around 50–100 hairs a day, but seasonal shedding can push that number higher. It’s part of the natural hair growth cycle, but that doesn’t mean there’s nothing you can do. Simple changes in your routine and awareness of what’s going on beneath the surface can help reduce excessive hair shedding and support healthy hair growth over time. Want to know why it happens, how long seasonal hair loss usually lasts, and what actually works to strengthen hair and promote hair growth? Keep reading.