Vòng đeo kích thích não bộ
Trong nhiều nghiên cứu trước đây, các nhà khoa học đã chứng minh sử dụng dòng điện cường độ thấp trong một số trường hợp có thể giúp điều trị một số bệnh, chẳng hạn như trầm cảm, lo âu hoặc các cơn đau mãn tính.
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