Your Body Has a ‘Second Heart’, And It’s Crucial You Keep It Pumping
[sciencealert.com – 2026.08.30] Every step, ankle flex, or rise onto your toes activates a remarkable pump below your knees. Your calf muscles squeeze the veins in your lower legs, helping propel blood upward toward your heart. This mechanism is so important to circulation that the calves are sometimes described as the body’s “second heart”. The […]
Your Body Has a ‘Second Heart’, And It’s Crucial You Keep It Pumping Read More »




