Smoking makes people look old because things like cigarettes contain nicotine.

Nicotine is a vasoconstrictor, which means it narrows our blood vessels, restricting the blood supply.

Once your brain is used to nicotine, for up to 72 hours you are itchy, nervous and stressed, but one drag and instantly, you feel really good.

A cigarette is dried tobacco leaves mixed with chemicals that make it burn slowly, helping you to absorb nicotine, and flavours that make the smoke less harsh.

In cigarettes, this releases nicotine which is absorbed into your bloodstream through the lungs, causing increased heart rate, constricted blood vessels, release of dopamine in the brain and feelings of alertness.

But because nicotine is a stimulant, once it’s no longer present, you crash and crave more, which ultimately leads to addiction in many people.

To start, the nicotine in vapes hits your bloodstream and brain faster than cigarettes.

Mixed with an active ingredient, most commonly nicotine and chemical flavorings,

And my last tip about moderating your diet is to avoid nicotine and caffeine as the stimulating effects of nicotine and caffeine take hours to wear off and can mess up your quality of sleep dramatically.

as the stimulating effects of nicotine and caffeine take hours to wear off and can mess up your quality of sleep dramatically.

appetite improved and she gained weight. Without nicotine constricting her blood vessels, the

from Duke University, and spent some time with a nicotine

is also activated by things like cocaine and nicotine.

administered so every time someone administers nicotine, cocaine, morphine

Neonicotinoids, a chemical family similar to nicotine,