Fidel has published a letter to his people and well wishers worldwide in the Cuban youth communist paper "rebellious youth".
He speaks of his real happiness to have reached his 80th birthday and promises he will fight for his health.
At the link a photo of Fidel in his tracksuit fighting for his health.
A few other photos have also been released showing him enjoying jelly (perhaps ice cream too who knows!?) and talking on the telephone.
Happy Birthday Fidel.