An organic compound naturally found in the leaves of the tobacco vegetable, nicotine is readily riveted by the human body–and highly addictive. Although nicotine can enter the physique through the epidermis or mucous membranes in the nose or entrance, most people ingest nicotine by smoking cig.
Smoking nicotine delvers it efficiently into the lungs, which are lined with tiny alveoli? These alveoli normally interchange oxygen with carbon dioxide and nitrogen in normal breathing. When cigarette smoke is gasped into the lungs, nicotine journeys through the alveoli into the arteries, and within 15 seconds, is transported through the body and into the mind.
- Nicotine in the Body
At first, nicotine causes the release to problematic adrenaline. Adrenaline causes heart rate and body fluid pressure to spike, and makes your body release insulin–which fools the form into thinking there is excess glucose in the arteries (because of this, smokers often report a reduction in their appetite).
Inhaled smoke has other effects on the physique: Carbon monoxide harms the lungs and vein walls, weakening them and increasing the potential for heart attack, stroke and body fluid clots.
- Nicotine in the Brain
It’s in the mind that nicotine does its most work and damage. There are millions of neurons, cells that transfer info throughout the nervous system. Between 2 neurons is the synapse, across which info is sent. One neuron reliefs a chemical called a neurotransmitter, which binds to the next neuron in the “chain.” This chain sets in motion the physique’s response to new information.