The body responds to stress on a cellular level by activating the hypothalamic-pituitary-adrenal (HPA) axis, leading to the release of stress hormones like cortisol and adrenaline. This response prepares the body for "fight or flight," increasing heart rate, blood pressure, and energy availability. However, chronic stress can lead to prolonged exposure to these hormones, which may harm cellular health, disrupt metabolic functions, and contribute to age-related diseases. Consequently, managing stress through mindfulness, exercise, and other relaxation techniques is essential for maintaining both mental and physical health.