On/Off Switch for BRAIN!

Scientists have developed an “off-switch” for the brain to effectively shut down neural activity using light pulses.

Now, after almost a decade of research, scientists have been able to shut down the neurons as well as activate them.  

http://www.independent.co.uk/news/science/scientists-have-built-an-off-switch-for-the-brain-9291690....

[JP:  Great tool for mother in laws.  Problem is that when you turn on the brain, nothing happens.*]

* For the mentally challenged, this is what is known as a joke.