Did Charlie die at the end of Flowers for Algernon by Daniel Keyes?

It is suggested that
Charlie dies at the end of
the short story "" (as well as the novel of the same
novel), as he is
following the same process as Algernon, the mouse. Algernon dies after his

motor activity slows and he loses coordination. A dissection after death shows that the
mouse's
brain had lost weight. Charlie realizes at the time that Algernon and
he are both subject to the
Algernon-Gordon Effect, which is the idea that
intelligence that is increased artificially slows
down at a rate that is
proportional to the increase. That is, as Charlie's intelligence improved

rapidly, he will inevitably lose intelligence quickly.

At the end of
the
short story version of "Flowers for Algernon," Charlie is showing all the
signs of
decline that Algernon the mouse did. He loses coordination, and he
begins to slow down. He also
loses the intelligence that he had gained and
shows signs of decline, suggesting that he will
die. At the end of the novel,
Charlie returns to the Warren Home School, and, in his last
letter, he asks
someone to put flowers on Algernon's grave, also suggesting that he knows he
is
going to die soon.