Does Caffeine Age You?

Caffeine is a stimulant. According to MayoClinic.com, caffeine's effect on the central nervous system is responsible for its ability to wake you up, make you feel less fatigued and focus on a task at hand. In the past, caffeine was thought to be a health risk. However, current research findings have identified health benefits associated with caffeine and coffee.

Caffeine and coffee are used as active ingredients in many skin creams because of their diuretic, antioxidant and vaso-constrictive properties. Cellulite creams containing caffeine help to smooth the skin. Research using mice exposed to ultraviolet radiation provides some evidence that caffeine-enhanced skin creams may help protect your skin from skin cancer. Caffeine is also used in some eye preparations. Vasoconstriction, or constriction of blood vessels, and caffeine's diuretic effect help to reduce puffiness and dark circles around the eyes. The end result is that these medications help make skin appear healthy and younger.

Most of the caffeine in coffee, tea and some other beverages is absorbed by other body tissues, so your skin gets a relatively small amount. Therefore, it's not likely coffee will have much effect on the appearance of your skin. However, MayoClinic.com says that research shows coffee has other health benefits. In addition to its value as a stimulant, caffeine and coffee are linked to reducing risk of liver cancer, Type 2 diabetes and Parkinson's disease.

Caffeine and coffee should be consumed in moderation. MayoCliic.com suggests you limit your intake to four cups a day. More than four cups can cause a diuretic effect leading to frequent urination. Drinking excessive amounts of caffeine may lead to insomnia, irritability, nervousness and restlessness.