Pessimistic people more prone to cancer

"People who are introvert, aggressive, and dissatisfied with life are more likely to get cancer," Report informs, citing the Instagram page of Russian oncologist and surgeon Ivan Karasev.

"The individuals who are extrovert, optimistic, sociable and positive about life, I think, are less prone to this illness," he noted.

Karasev said that the cause of cancer cells is still unknown. Simultaneously, several factors increase the risk of developing the disease, including chronic stress, chronic inflammation, an unhealthy diet, and genetic predisposition.