You can become addicted to nicotine within days of starting to use it, even if you only vape occasionally. Here's how to tell ...

The blood test that detects nicotine is called a cotinine test. It measures recent tobacco use and exposure. Cotinine is a chemical that comes from the breakdown of nicotine in the body.

Research indicates smoking may improve cognitive control in HIV-positive individuals by lowering brain inflammation, ...

"So it would be pertinent to trial and test it." The expert have strongly warned, however, against people turning to smoking because of any speculative links between nicotine and combating Covid-19.

France has banned the online sale of nicotine products and limited their sale in pharmacies, after researchers suggested that nicotine may play a role in protecting against coronavirus.