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.
Answers. Best Answer: Effects of Caffeine on the Nervous System Caffeine is a central nervous system stimulant. In moderate doses, caffeine can: increase alertness reduce fine motor coordination cause insomnia cause headaches, nervousness and dizziness In massive doses, caffeine is lethal.n moderate doses, caffeine can: increase alertness reduce fine motor coordination cause insomnia cause headaches, nervousness and dizziness In massive doses, caffeine is lethal.