Did you know?
Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.
Did you know?
Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.
These species are all at risk of extinction.
Figure 7.1 shows the rapid decline in the trust of Americans in government since the 1960s. This de
Dual Systems Model of Risk-Taking
Men who are at risk for heart disease and report work-related stressors are at greater risk of death ...
Age is the leading risk factor for cancer
The lifetime risk for schizophrenia varies with the degree of relationship to an affected individual