n the physical front, aging brings a host of challenges. Bones become more brittle, muscles lose their strength and flexibility, and joints start to ache with the wear and tear of a lifetime. Cardiovascular health may decline, leading to hypertension, heart disease, or stroke. Vision and hearing may deteriorate, making it harder to navigate the world and stay connected with others. Skin loses its elasticity, hair turns gray or white, and wrinkles become more pronounced, all outward signs of the passage of time.