Hair loss and balding primarily stem from genetics, often manifesting as a hereditary condition in both sexes as early as their twenties. Other factors contributing to hair loss include autoimmune diseases like alopecia areata or lupus, significant life events such as surgeries, childbirth, and major weight loss, as well as certain medications. Skin disorders like psoriasis or seborrheic dermatitis, and nutritional deficiencies, particularly in iron, are also linked to hair loss. Additionally, hair styling practices involving excessive heat or frequent coloring can exacerbate hair thinning.