Index: threading.rst
===================================================================
--- threading.rst	(revision 83069)
+++ threading.rst	(working copy)
@@ -299,8 +299,8 @@
 
       Return whether the thread is alive.
 
-      Roughly, a thread is alive from the moment the :meth:`start` method
-      returns until its :meth:`run` method terminates. The module function
+      This method returns True from just before the :meth:`run` method starts
+      until just after the :meth:`run` method terminates.  The module function 
       :func:`.enumerate` returns a list of all alive threads.
 
    .. attribute:: daemon