I am an Atheist since more than 2600 years. Charvak was born before 2600 years in India subcontinent. Charvak had informed entire world to stay away from any Religion or God. His main aim was : be healthy only. Charvak said Healthy person can think healthy.
Any fear from death will invite Religion or God. In India subcontinent, many middle men, Brahmins, Monks, Rishis are awaiting to cheat you. There are so many such cheaters in world.