Sikhs always put a wooden comb (kanga) in the hair, so the electric magnetic field is stabilized and does not change.

Guru Gobind Singh, the tenth Sikh Guru, gave Sikhs the wooden comb to balance the electromagnetic energy of the brain.

For normal health, for increased energy, for the eyes, for women’s menstruation cycle, and for longevity, it is advised to use a wooden comb, combing the hair up, back, forward, and so on. Strong circulation and stimulation of the scalp with a wooden comb enhances health, energy and longevity.

Sikhs use the wooden comb to stroke the hairs and the electromagnetic field, and to stimulate the circulation of the scalp. Combing the hair with wood is part of caring for it properly.