Being overweight can bring many health problems, including type 2 diabetes, which can cause nerve damage throughout the body. If that affects the nerves affecting the penis, ED can result.

超重可导致许多健康问题，如可导致全身神经损伤的2型糖尿病，如果那同时影响了作用于penis的神经，则可能导致ED。

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Right whales have one of the smallest brain-to-body-size ratios of any cetacean, the longest penis in the animal kingdom (averaging more than seven feet or 2.3m) and testes with a combined weight of one tonne.

ECONOMIST: The lives of whales