During the ascent, which practice helps to equalize ear pressure?

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Pinching the nose and blowing, often referred to as the Valsalva maneuver, is an effective method for equalizing ear pressure during an ascent. As divers ascend, the water pressure decreases, and this can create a pressure difference between the outer ear and the middle ear, leading to discomfort or potential injury if not equalized. By pinching the nose and gently blowing, divers increase the pressure in the nasopharynx, which helps open the Eustachian tubes and allows air to flow into the middle ear, equalizing the pressure.

This technique is widely taught and practiced among divers and is essential for maintaining comfort and safety during an ascent. It effectively resolves the pressure imbalance that can occur during the dive, preventing issues such as barotrauma.

The other practices mentioned do not directly assist in equalizing ear pressure. For instance, adding extra weight would actually hinder ascents and could increase the risk of injury, while opening the mouth wide or using different breathing techniques may not provide any effective means to equalize the pressure in the ears. Understanding the importance of pressure equalization and the correct techniques ensures a safer diving experience.

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