Lambert soon came to the attention of the medical profession, and shortly after his arrival in London, the "Medical and Physical Journal" published an article about him. They confirmed that he weighed , and measured his height as . A thorough medical examination found that his bodily functions worked correctly, and that he breathed freely. Lambert was described as active and mentally alert, well-read, and with an excellent memory. He was fond of singing, and had a normal speaking voice which showed no signs of pressure on the lungs. Doctors found tumefaction of his feet, legs and thighs, and accumulation of fat within the abdomen, but other than scaly and thickened skin on his legs caused by previous attacks of erysipelas, he had no health problems. Lambert told the doctors that he ate normal quantities of ordinary food. He claimed that since about 1795 he had drunk nothing but water, and that even while young, and a regular party-goer, he did not join his fellow revellers in drinking. Lambert claimed that he was able to walk about a quarter of a mile (400 m) without difficulty. He slept regularly for no more than eight hours per night, always with his window open, and was never heard to snore; on waking he was always fully alert within five minutes, and he never napped during the day.