A neurotransmitter in the brain, called Adenosine, dilates blood vessels and slows nerve cell activity, contributing to feelings of sleepiness. Caffeine works to combat this sleepiness by attaching to the adenosine receptors to jolt a person awake.
When adenosine is restricted by caffeine, nerve cells move at a faster rate. Norepinephrine is then released, which is one of the two hormones that lead to the “fight or flight” response in the body. When norepinephrine is released, epinephrine is then also signaled to release as part of the “fight or flight” response, reducing blood flow to specific organs and increasing blood flow to the brain and heart. The increase of blood flow is also another way that caffeine helps a person to feel more awake.
The Effects of Caffeine on Veins
While caffeine may seem like an easy and safe fix for sleepiness, it doesn’t come without its side effects. Caffeine has additional effects on the body, including contraction of the vessel walls, leading to narrowing of the blood vessels. Caffeine also releases extra stress hormones, such as adrenaline, which can temporarily increase blood pressure.
To avoid over stimulation of the nervous and venous systems, make sure to limit your daily caffeine intake. A moderate caffeine intake is approximately 250 mg, or three 8 ounce cups of coffee per day. Limiting yourself to this amount will decrease the risk of side effects such as constricted blood vessels, high blood pressure and nervousness.
If you are already suffering from venous insufficiencies, caffeine will not make a significant impact; however, it is best to ere on the side of caution by limiting your daily intake. Caffeine constricts blood vessels, increases blood pressure and decreases circulation, which isn’t healthy, especially for someone with venous disease.
If you fear that you may have venous insufficiency, it is best to visit with a vein doctor in the Lake Bluff area as soon as possible to avoid progression of the disease and development of other life threatening conditions. No matter what level of venous insufficiency you may have, our Advanced Vein & Laser Centre vein doctor in the Lake Bluff area can provide a treatment that will produce results that you will love.
Recommended additional reading:
- Common Causes of Vein Disease
- The Most Common Symptoms of Venous Disorders
- 5 Ways to Prevent Venous Disorders
Call us today at 847-367-4040 or contact us online to learn more about the vein doctor serving Lake Bluff and the greater area with effective, minimally invasive procedures.