What does "though" mean here?

Biuis   Tue May 22, 2007 2:24 am GMT
He tired easily, though he was unable to sleep well at night.
For the sentence above, I fail to see any relation of transition between the first clause and the second clause. Any one could explain to me?
Guest   Tue May 22, 2007 2:32 am GMT
It means "but" or "yet". It implies contrast between the clauses.
Josh Lalonde   Tue May 22, 2007 2:35 am GMT
The relation between the clauses is because you would expect someone who is tired to sleep, yet this individual doesn't. You could write it like this: "Even though he easily became tired, he was unable to sleep well at night."
Uriel   Tue May 22, 2007 3:30 am GMT
I used to have that problem -- exhausted by 8 pm, but tossed and turned all night. Turned out to be a lousy, second-rate thyroid. ;)
Bius   Tue May 22, 2007 7:35 am GMT
Josh Lalonde's reply makes sense to me. Thanks!