There are a variety of effects that atheism can have on individuals and society.At an individual level, atheism can lead to a sense of purposelessness and meaninglessness. This can be a particularly difficult thing to grapple with, as humans are naturally wired to seek out purpose and meaning in life. Without a belief in a higher power or an afterlife, some people may find it difficult to find motivation to live a good life. This can lead to depression, anxiety, and other mental health issues.At a societal level, atheism can lead to a lack of morality. Without a belief in God or an afterlife, some people may feel that there is no reason to be moral. This can lead to increased crime rates, corruption, and general immorality. It can also lead to a decline in religious institutions and a decrease in overall religiosity.