
For the muscles: the feet absorb the body weight with every step. Shoes with cushioning and arch support often do the work for our foot muscles, which can atrophy in the long term. Walking barefoot, on the other hand, strengthens the foot muscles.
For posture: Back problems or hip problems are often caused by the feet. If the muscles there are too weak or differently developed, we make movements to compensate for this imbalance. Walking barefoot ensures a good and balanced posture.
For healthy skin: Bare feet are less likely to develop nail or athlete's foot, as fungi thrive in the warm and humid environment of sturdy shoes with hardly any air. Incidentally, athlete's foot is the English term for athlete's foot, as sneaker wearers are particularly often affected. By walking barefoot, the feet are well supplied with blood and the skin remains dry, which protects against the nasty fungal spores.
For the immune system: The health pastor Sebastian Kneipp based his entire philosophy on this: "Cold stimulus is life stimulus", were his words. If you exercise, you won't catch a cold, even on wet and cold ground. On the contrary: it strengthens the blood vessels, promotes the body's temperature regulation and thus strengthens your own defenses.
Soft at the beginning: Specialists recommend a soft surface for beginners so that their feet can get used to it. There are now barefoot parks all over Germany where you can walk barefoot without risk.