Stress affects the body’s immune system in different ways, depending on two factors: the controllability or uncontrollability of the stressor and the mental effort required to cope with the stress.

 Coffee is our principal caffeine source, with Americans drinking an average of 3.5 cups a day. 

Ticks are not responsible for the spread of Lyme disease.

Epstein-Barr virus (EBV), a member of the herpes virus family, infects most people at some time in their lives.

Some college students inherit a genetic or biological predisposition to substance abuse.

Carcinoma, the least common kind of cancer which starts in the epithelium, the layers of cells that cover the body’s surface or line internal organs and glands

 Insulin resistance is a condition in which the body produces insulin but does not use it properly.

Asthma-related problems account for more than half a million hospital stays each year and 14 deaths each day in the United States, according to the Asthma and Allergy Foundation of America. The disease disproportionately affects African Americans and is much more common among people who live in larger metropolitan areas.

Herpes (from the Greek word that means “to creep”) collectively describes some of the most common viral infections in humans. Characteristically, herpes simplex causes blisters on the skin or mucous membranes.

Anyone who engages in penile-vaginal intercourse must be willing to accept the consequences of this activity, including the possibility of conceiving a child, or take action to avoid an unintended pregnancy.