brain plasticity
Last night I watched the second episode of the BBC’s Incredible Medicine: Dr Weston's Casebook series. It’s only episode 2 and I’m already hooked, last week featured the stories a young 7 year-old girl who’s heart was on the outside of her ribcage instead of the inside, and a man who’s body couldn’t store a single gram of fat. This week showcased the only human on earth to have been cured of HIV; I didn’t even know that had happened, and I’m not sure how I didn’t know. What I found most incredible was the story of a 28 year old girl, Casey, who at the age of 3 years old, started to suffer from seizures that cause one side of her entire body would become paralysed causing her to collapse. It got to the point that Casey began to have fits nearly every 3 minutes and her parents had to be next to her in order to hold her up. The doctors worked out that it was a condition known as Rasmussen's encephalitis; a rare illness that causes chronic inflammation of the brain, most commonly occurring in only one hemisphere of the brain. Her neurologists concluded that the only possible way to treat the condition was to remove the half of the brain that was effected. By removing the right-hand side of the brain it was hoped that the left hand side would compensate and take over it’s functions.
This phenomena is known as brain plasticity, the brain’s ability to adapt, organise and change its’ function. Because of the young age that Casey was diagnosed at, (because of the early stages of development,it is thought the brain is in it’s most plastic state when we are children) her brain was able to alter it’s ability and adapt to compensate for the missing half.
It is incredible that the human body can adapt to losing half of it’s most important organ in such a way that Casey can survive and function completely normally while having full control over her entire body.
All the while we are adding to out lives, creating new ways to experience and replace our natural bodies, we are able to exist with much less than we think we need. This is all down to the remarkable and unknown abilities of the human body.












