If you choose to smoke, your body will use this substance less efficiently.

When you smoke, the harmful chemicals in tobacco enter your body and can have various effects on its efficiency:

1. Decreased oxygen supply: Smoking narrows the blood vessels, reducing the amount of oxygen-rich blood that can reach your organs and tissues. This impairs the efficiency of oxygen delivery to different parts of your body, affecting organ function and overall performance.

2. Lung damage: Smoking damages the lungs and reduces their capacity to take in oxygen and remove carbon dioxide effectively. This limits the amount of oxygen available for your body to use, affecting energy levels and physical performance.

3. Impaired cardiovascular function: Smoking increases the risk of cardiovascular diseases such as heart attacks and strokes. These conditions can lead to reduced blood flow and oxygen delivery to vital organs, further reducing their efficiency.

4. Weakened immune system: Smoking weakens the immune system, making you more prone to infections and illnesses. This can disrupt your body's natural defense mechanisms, leading to energy depletion and reduced overall efficiency.

5. Impaired nutrient absorption: Smoking reduces the absorption of vital nutrients, including vitamins and minerals, in your body. These nutrients play a crucial role in various bodily functions, and their decreased availability can impact overall energy and efficiency.

6. Cellular damage: Smoking contributes to oxidative stress and an increase in free radicals, which can damage cells and impair their functioning. This can lead to various health issues, affecting your body's overall efficiency.

It's important to note that quitting smoking can significantly reverse many of these negative effects and improve overall body efficiency over time.