yes they can because it messes with their brain and the way of thinking.
These things can lead to people feeling those certain feelings
Depression
Anxiety
Stress
Not enough nutrients
Sleep deprived
Explanation:
The blank slate, the dominant theory of human nature in modern intellectual life stating that humans are shaped entirely by their experiences and not by any preexisting biological mechanisms, is being challenged and soundly trounced by the cognitive, neural, and genetic sciences, said Steven Pinker, Harvard University, in his Keynote Address.
“Everyone has a theory of human nature,” Pinker said. “Everyone has to anticipate the behavior of others, and that means all of us have theories, tacit or explicit, about what makes people tick.”