BIOLOGY | MEDICAL | HEALTH on Instagram: "Ever noticed a throbbing or pulsing vein on your forehead? It’s not random. Here’s what your body is trying to say 👇 🩸 Increased Blood Flow: When your heart pumps harder—during stress, exercise, heat, or anxiety—blood rushes faster, making veins more visible and pulsy. 🔥 Heat & Dehydration: Hot weather or dehydration dilates blood vessels, pushing them closer to the skin. 😣 Stress & Tension: Mental stress can raise blood pressure temporarily, causing