Harvard University public health study identify pessimism as a factor that doubles the risk of heart disease .
A pessimistic perspective on life may be harmful to heart health.
Over the course of ten years, the study followed 3,000 men and women between the ages of 52 and 76. Participants were polled prior to the study to gauge how well their outlooks matched up with optimistic and pessimistic personality qualities.
According to the study, males who were assessed to be the least pessimistic were four times as likely to acquire heart disease. The study's most pessimistic participants also had a greater than twofold increased risk of dying from coronary heart disease.
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Answer and Explanation:
1. Many butterflies are affected by the same parasites as humans. In this case, experiments that use and observe this type of animal are important because it can allow human beings to observe how these parasites act in contact with a living organism.
2. This stimulates the opening of new scientific thoughts that allow human beings to improve treatments and medications to combat these parasites when the human being is a victim.
Answer:
A novel coronavirus is a new coronavirus that has not been previously identified.
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Females and males each have some amount of the sex hormones, androgens and estrogens. In males however, androgens like testosterone is more dominant and in females estrogens like estradiol are more dominant. The hormones both affect the sexual response cycle. The sexual response cycle has four phases: desire, arousal, orgasm and resolution. The desire phase can last anywhere from a few minutes to hours and includes physical changes like an increase in muscle tension, heartbeats quickening, flushed skin, and an increased flow of blood to genitals. The arousal phase extends to the brink of the orgasm phase, during this phase the changes experienced in the desire phase are intensified along with blood pressure increasing. The orgasm phase generally only lasts a few seconds and is the climax of the sexual response cycle, some characteristics include: Involuntary muscle contractions and spasms, blood pressure, breathing, and heart rate at their highest point, a release of built up sexual tension, and flushed skin. During the resolution phase the body returns to normal, often a sense of wellbeing and fatigue is achieved. To begin the cycle a male need a certain amount of the androgen, testosterone, but high levels in females tend to lead to more sexual thought and desires, typically though, women have relatively low levels of testosterone. In women, estrogens, such as estradiol are more common. Estrogens are produced when a girl starts puberty and helps her reproductive cycle begin. A high level of estrogen in men can lead to a reduced sex drive, loss of hair, or trouble focusing, but a normal level in men is crucial to proper erectile function.
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The dorsal root is the afferent sensory and carries sensory information to the brain
