Richard Simmons has passed away at age 76. According to law enforcement, around 10 a.m. on Saturday, July 13, police and fire department were called to the fitness guru’s home, where he was pronounced dead. No foul play is suspected at this time. As OK! previously reported, Simmons recently opened up about how happy he was to be alive after turning 76 on Friday, July 12. “I feel good! I am grateful that I’m here, that I am alive for another day. I’ll spend my birthday doing what I do every day, which is to help people,” he raved in a recent interview. Never miss a story — sign up for the OK! n…