I believe the answer is D. Unintentional/preventable
Answer:
Most people who smoke tobacco start during their teenage years or as a young adult. There are many reasons why a person starts to smoke. For some teens, it is a way to rebel against their parents. Other teens may feel pressure from their friends (peer pressure) and begin smoking as a way to appear “cool”. A number of different motives for drinking alcohol have been examined, including drinking to enhance sociability, to increase power, to escape problems, to get drunk, for enjoyment, or for ritualistic reasons.
Explanation: Why not? Alcohol may lead to weight gain.
Alcohol interferes with memory and learning.
Alcohol increases the likelihood that you will use other drugs.
Alcohol increases your risk of developing cancer.
Alcohol can lead to liver disease and other severe, chronic diseases.
SMOKING: Lung Cancer. Smoking is the number one cause of lung cancer. ...
Heart Disease. One out of every five heart disease deaths is directly related to smoking. ...
Diabetes. Smoking causes type 2 diabetes. ...
Liver Cancer. ...
Erectile Dysfunction. ...
Ectopic Pregnancy... ect
There are numerous circumstances that give pathogens the chance to harm people.
The first occurs when an infection has already weakened the immune system. In situations like this, other pathogens may infect the host opportunistically and cause an infection. If the human host does not maintain proper personal and environmental hygiene, that is another condition. Many pathogens thrive in unclean environments, so by failing to maintain proper environmental hygiene, a person increases his risk of contracting a pathogen.
Finally, since so many pathogens are transferred by vectors, humans are more likely to contract the diseases that these vectors aid in spreading if they do not take the necessary precautions to stop their activity.
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High homocysteine levels in the blood can damage the lining of the arteries. High levels may also make the blood clot more easily than it should. This can increase the risk of blood vessel blockages. A clot inside your blood vessel is called a thrombus. A thrombus can travel in the bloodstream. From there, it can get stuck in your:
Lungs (called a pulmonary embolism).
Brain (which can cause a stroke).
Heart (which can cause a heart attack).
