Your campaign about chest pains is complete, and research shows that you were most successful at reaching people who were already fairly well informed about heart attack warning signs. unfortunately, low-income individuals at highest risk for heart attacks were not as influenced by the campaign. this is an example of:

The knowledge gap hypothesis

cancer may have started a fight but will finish it.♡

use of tobacco (chewing or oral intake–cause of oral cancer)

.premature or childhood pregnancies and lack of sexual hygiene (causes in cancer of ovaries and uterus of women)

.use of contraceptive pills of oral use and childlessness among women who never breast-feed (causes in breast cancer)

smoking (cause of lung cancer)

other environmental causes

air and water pollution

excessive exposure to radiation

eating and sleeping habits in violation of the laws of natural living

suppressive and unnatural (body unfriendly) treatment of common diseases

excessive exposure to harmful chemicals of the following types—

benzene

arsenic

chromium

cadmium

asbestos

vinyl chloride

polycyclic hydrocarbons etc.

below are types of cancer:

lung cancer

prostate cancer

colorectal cancer

bladder cancer

breast cancer

melanoma

kidney cancer

liver cancer transplant

pancreatic cancer

thyroid cancer

cervical cancer

colorectal cancer

lymphoma

ovarian cancer

skin cancer

uterine cancer

vaginal and vulvar cancers

since you have not provided the options here i   am going to give you general overview about hormone.hormone are actually the part of endocrine system in our body and produced by the endocrine glands. the hormones act like a chemical messenger   within human body. once produce by the glands they   travel through the blood stream and reach at specific or target tissue and organs   which result in control of our body function. the hormones are specific in their work and work on only the targeted tissue or organ   . with the of hormone endocrine system regulate the heart rate , metabolism, our mood and   growth as well as the development and even the sleeping cycle etc. they actually are the messenger for body cell and organs .