Medical
Hi There - I had mine at Gatwick last year - it does take at least 3 hours.
A) Firstly you change into a robe and have to go around like your on holiday for the morning.
B) There are so many test. eg the eye test takes a good 45 mins. Its very thorough and done by a friendly guy
C) Electrocardigram take a long time
D) Many other test inc. ears, body movement, blood
E) A friendly chat
F) Some waiting in between.
Good luck - its not fun - but a clean bill of health at the end - you hope!