Feet ankles refer to the protrusions on both sides of the connection between the calf and the feet. You can feel two protruding bones when touching with your hands, which are the ankle bones. If the ankles become stiff and aged, the return of blood to the heart will be affected, which can easily lead to an increased burden on the heart. Therefore, middle-aged and elderly people should pay attention to exercising their ankles more often, such as doing gymnastics or massaging to keep their feet soft and elastic. The ankles are the protruding parts on both sides between the calf and the feet. Specifically, the ankle bones are the two protrusions on the feet that can be felt by hand. In anatomy, the ankle (Pinyin: jiǎohuái), or ankle joint, is the part of the human foot connected to the leg. It is composed of seven tarsal bones plus the metatarsal bones of the feet and the bones of the calf. The ankle is an important part of the blood circulation of the left and right feet. If the ankle is soft and elastic, the venous blood returning to the heart can pass through the ankle smoothly. If the ankle is stiff and aged, the venous blood returning to the heart will stagnate near the ankle, affecting the normal blood circulation. If the ankle is aged and stiff, the venous blood returning to the heart will stagnate near the ankle like a "traffic jam", which will increase the burden on the heart and increase the risk of hypertension in the long run. By doing gymnastics or massaging, the ankle can be transformed from stiffness to softness and flexibility, especially for the elderly. This can not only allow the venous blood returning to the heart to pass through the ankle smoothly, but also alleviate the symptoms of hypertension.