Peter Wheeler of John Moores University in Liverpool, England, has shown that this was accomplished through an increase in the number of sweat glands on the surface of the body and a reduction in the covering of body hair.

• 英国利物浦约翰摩尔大学的惠勒证明过，要是增加体表的汗腺数量、少体表的毛发，这个问题就解决了。