Smoking, Alcohol, Weight Flashcards
what 4 chemicals does tobacco contain?
nicotine, tar, carbon monoxide, chemicals affecting cilia
nicotine
addictive stimulate, sense of well being
tar
carcinogenic, accumulates in lungs
carbon monoxide
toxic gas, replaces O2 in red blood cells, harming cells/ heart/ blood vessels
chemicals affecting cilia
anaestheticise cilia, decreasing waft of mucus
smoking consequences
2x heart attack, 20x lung cancer, problems with pregnancy and fertility, bronchitis, emphysema
causation
a factor biologically links to another
correlation
a trend/ pattern between two factors
cancer
error during the copying of DNA in mitosis, leading to uncontrolled division of cells, forming tumours
benign
non-cancerous
malignant
cancerous; cells break off tumour, traveling in lumps in the blood stream to elsewhere, forming another tumour
lung cancer
smoking, air pollution, radon gas, genes
skin cancer
sunbeams, sun burns, fair complexion, moles, genes . Melanoma or non-melanoma
cervical cancer
genes, sex, gender, obesity
breast cancer
BRCA gene, age, gender, race