A herpes culture (or HSV DNA testing) may be ordered when someone has a blister or vesicle on their genitals. HSV DNA testing is ordered when a person has encephalitis that the doctor suspects may be caused by a virus. HSV testing may be ordered regularly when a pregnant woman has herpes.
Caffeine stimulates the central nervous system and can produce restlessness, headaches, and irritability. caffeine also elevates your heart rate and blood pressure. Over the long-term as your body gets used to caffeine, it requires higher amounts to get the same effects. Certainly, having your body in a state of hormonal emergency all day long isn't very healthy.
Caffeine has been studied extensively for its effects on endurance and performance in athletes, according to the American College of Sports Medicine. Consuming a small amount of caffeine, equivalent to the amount in 1 cup of coffee, prior to an event improves overall endurance, says ACSM.