B I just took it so it’s b
It’s B! When it comes too stuff like that people that are professionals need to know to get you to safety! That’s why it’s B.
Target heart rate is defined as the minimum number of heartbeats in a given amount of time in order to reach the level of exertion necessary for cardiovascular fitness, specific to a person's age, gender, or physical fitness.
Late 18th century Edit
On July 16, 1798, President John Adams signed the first Federal public health law, "An act for the relief of sick and disabled Seamen." This assessed every seaman at American ports 20 cents a month. This was the first prepaid medical care plan in the United States. The monies were used for the care of sick seamen and the building of seamen's hospitals. This act created the Marine Hospital Service under the Department of the Treasury. In 1802 Marine Hospitals were operating in Boston; Newport; Norfolk; and Charleston, S.C. and medical services were contracted in other ports
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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