Answer:
Vaccines have been around since 1796 preventing people from diseases and decreasing death rates. I believe due to the modern vaccines and medicine people have been living longer than life expectancies in the 1700's and 1800’s, which was between 30 and 40 years. Vaccines train the human body to recognize viruses or bacteria and the antigens (molecule capable of inducing an immune response) will start attacking the virus or bacteria before it tries to spread and cause sickness once it is has recognized it. However, vaccines are not always 100% safe because they can come with side effects. For example, the Hepatitis B vaccine had a severe allergic reaction, called anaphylaxis which caused difficulty breathing, dizziness, and skin rashes for a few people.
The statement about bipolar disorder which is true would be that periods of depression usually last longer than do periods of mania - b. This, however, is dependant on the person and whether/how he has been diagnosed and in which time of lie as it may vary.
Answer options:
a.body weight relative to height; the amount of one’s abdominal fat
b.body weight relative to height; one’s height
c.abdominal fat relative to height; one’s age
d.abdominal fat relative to height; one’s hip measurement
Answer
a.
Explanation:
BMI takes into account your weight and your height. However, this can be a bit problematic because it doesn't take into account muscle mass. So someone who is, for example, short and muscular but with little to no body fat, could show an "obese" BMI, even though they are in great shape.
BSI aims to overcome this by also taking into account abdominal fat by measuring waist circumference. Body shape seems to be better at predicting how likely someone is to suffer weight-related illnesses, so BSI takes into account these factors for a more accurate measure.
