Everyday headaches can be caused by a variety of factors including tension headaches, migraines, medication overuse, chronic sinusitis, dehydration, poor sleep, dietary habits, substance use, and prolonged screen time. Additional causes include muscle tension in the head and neck, hormonal changes, genetics, and overuse of pain medications. Stress, anxiety, sleep disturbances, skipped meals, and environmental triggers also play significant roles. It is important to monitor headache frequency and triggers, and seek medical advice if headaches are severe, persistent, or worsening despite over- the-counter treatments.