1. Stress – High emotional or physical stress can push hair into a resting phase, causing sudden shedding or hair thinning (Telogen Effluvium). 2. Age – As we age, hair growth slows down and follicles shrink, leading to thinner, weaker hair and gradual hair loss. 3. Genetic Hair Loss – Also known as Androgenetic Alopecia, this inherited condition causes progressive hair thinning, often starting at the crown or hairline. 4. Hormonal Changes – Hormonal imbalances from pregnancy, menopause, thyroid issues, or PCOS can disrupt the hair growth cycle and lead to excessive shedding. 5. Nutritional Deficiencies – Lack of essential nutrients like iron, vitamin D, biotin, and proteins weakens the hair shaft, making it brittle and more prone to falling.