Does your body jerk as you fall asleep? Clete Kushida from the Stanford Sleep Medicine Center explains why: http://bit.ly/ij8NR2
7:14 PM - 26 Jan 2011
0 replies
11 retweets
11 likes
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.