London: Actor Charlie Sheen, who revealed he is HIV-positive a few months ago, says he feels lighter, younger, smarter and sexier. He gave the world an update on his health on June 19. He opened up about his diagnosis during an intimate chat with Piers Morgan at the Theatre Royal here, reports usmagazine.com. Now, he is taking a next-generation drug called Pro 140 to treat his symptoms. "It is the future of HIV treatment, no doubt. It's one shot a week," Sheen explained to Morgan, 51. "I feel lighter, I feel younger, I feel smarter, I feel sexier," he said.