Remember kids... always wear a helmet. (The almighty bikeradar helmet thread)

Here's one for the new forum helmet thread. Perhaps we can resolve this once and for all: Wear a helmet or not, it is up to you (whatever your mother says). But if you ae going to wear wear one one that:

makes use of a brain-computer interface and has electrodes embedded in the foam that covers your forehead. It uses something called electroencephalography to take a real-time measurement of your brain's electrical activity - and voltage fluctuations - on the scalp. In doing so, the sensor can monitor how engaged your mind is.

http://www.scmp.com/lifestyle/article/1568389/mind-reading-helmet-analyses-cyclists-mood-and-signals-drivers